App Customer
Service

Nject Customer Service

About Nject (Keaton Benning, Llc)

Nject is a one stop shop for all your Aesthetics needs like: Dilution Calculators, Partnerships, Live Forum with experts, Vascular Occlusion help, and more...
CategoryMedical
Release DateApril 26, 2022
Latest Version6.0.0
Price$4.99
Age Rating17+
CompatibilityRequires iOS 15.1
Last UpdatedJanuary 13, 2026
Size68 MB
Supported Languages (1)
English

What's New in Nject (v6.0.0)

-- new Training content

Nject Contact Information

To reach Nject customer service and technical support, use the official channels below. For the fastest reply, choose the developer's official website.

Company NameKeaton Benning, Llc
Company Websitestudioxdesigns.com
Company Email[email protected]
Customer Servicestudioxdesigns.com/app
Social MediaFacebook / Twitter

Nject Subscription, App Deletion & iOS Support

How do I cancel the Nject subscription?

Open Settings on your iPhone or iPad, tap your Apple ID (your name) at the top, go to Subscriptions, select Nject from the list and tap Cancel Subscription. Cancellation takes effect at the end of the current billing period; you can keep using the app until then. See Apple's official subscription management page for details.

How do I delete the Nject app?

Touch and hold the Nject icon on the Home Screen, choose Remove App and then Delete App. Important: if you have an active subscription, deleting the app does not cancel it automatically - you must first cancel your subscription using the steps above.

Nject purchases, refunds and billing issues

Report billing or refund requests for Nject through Apple's Report a Problem (reportaproblem.apple.com). For the app's own technical support and contact, use the developer's official website or the Nject App Store page.

Distribution of Nject Reviews

Of the last 51 reviews shown, 57% are positive (4–5★) and 43% negative (1–3★). App Store overall rating: 4.0 / 5

5★ 23
4★ 6
3★ 6
2★ 3
1★ 13
Most mentioned:syringesyringesunitsdilutioneasyoptionsworkingtoxcomfortoxadd

Nject Positive Reviews and Ratings

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Wise2026 Trends
Very nice but needs more syringes.

I was under the impression that this would have more choices for syringes including TB syringes. I think it’s a nice app with a very specific purpose. I just think it needs to be updated with some more syringe options please. It would be nice to see some tuberculin syringes such as BD PrecisionGlide and Normo-Ject.

CJ CuretonVersion: 1.7
Great app; have one suggestion!

**Update! This was quickly added :) thanks!!** I really like this app, but I would love to be able to enter the number of units for a tox and have it show exactly where to pull that on the syringe. For example: if I use a 1.2mL dilution for Daxxi, and want to pull 14 units, where is that line on the syringe? Thanks!

ElisePieVersion: 3.0.2
Love!!

This app makes it so easy and less stressful when drawing up syringes. I’ve reviewed before and forgot to up my star rating for adding the comfortox 0.3 syringe. Would still love to see 0.5 comfortox Syringe added if possible. Definitely recommend this all to any and every injector I know.

Melhop5Version: 1.7
Semiglutide

Don’t really need the advertisement for Semiglutide stuck to the page. If someone isn’t interested in signing up to purchase then there should be away to delete it off.

LaseMDVersion: 2.0.2
App Has Been Revised

The developer reached out to me and we were able to get the 0.5mL Unitox syringe back and it is now correct for utilizing standard 2.5mL dilution. Thanks for the quick app update. We love utilizing this for all of our Tox needs!

MelissaWithersVersion: 3.0.2
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Travelpayouts2026 Trends
Such a great app

Sometimes it is a little confusing to figure out dosing when you are using different syringes. This takes the guessing out and I feel confident I am using the right dose

Jmoore33abcVersion: 1.7
Working again-best app!

I can't figure out how to delete my other review saying the app wasn't working but it is back and the best app I could ever recommend to injectors in the field!

Amanda Ralph NPVersion: 2.0.2
Fantastic!

I love this! I didn’t even know this was a thing, I was going to talk my husband into developing something like this! Works like a charm. The math is consistent with what I came up with as well.

CourtieLouVersion: 1.7
Love the app!!!

I also love the fact that I sent a message to add a certain syringe and it was added! What an absolute wonderful tool to utilize when you are first starting

Jj2620Version: 1.6
Helpful

Love the app ! Until it stoped working yesterday. Is anyone having the same issue when punching numbers and the app closing itself out before hitting next ? Please help

YogaaagirlVersion: 2.0
Love

I love this app. It’s such a helpful tool. The developer is also very responsive. I reached out for help and within the hour they had reached out and fixed my issue.

Sarah B09Version: 1.7
Great App

I just found out about this app today and it was so great to easily calculate the dilution and see what each unit is on different syringes. Highly advise getting this app!!

LoriR64Version: 1.7
Where have you been all my life!

Love, love this app. I teach injections and my students always stumble over units vs dose and volume used for reconstruction. Now I have them uploaded the app.

Bellabodymed10Version: 1.2.0
Hoping for more

I typically use standard dilution for Botox, but I was hopeful this would help with compounded Semaglutide and tirzepatide dosing. I would love an addition of mg per ml to units. The different strengths of compounded vials because cumbersome in calculating dosages.

PoliticsruineverythingVersion: 2.0.3
App is crashing

I love this app and use it very frequently but it isn’t working since the addition of Semaglutide dosing. Please help.

Lisa’s main accountVersion: 2.0
Physician

This is a great little APP. I recommend it to my students when I do trainings. I wish I could offer them a discount or free trial.

Docbennett_97Version: 2.0.2
Good tool, need more syringe sizes

This is a great tool when changing syringes. I would love to also see the 0.5ml Comfortox syringes added.

!!&&&!Version: 2.0.3
Great for tox dosing calculation

This is a here at app for determining how many units based on the vial size and the type of syringe you use and the type of tox. LOVE it!!!

Mcastle124Version: 1.7
More syringe options

Love but please add more syringe options like .5ml comfortox!

AngelicaPassVersion: 3.0.0
Injector

So easy to use and makes dilution a breeze!

1ZEMVersion: 1.2.0
Super Easy!

Extremely helpful and easy to use app.

HMill28Version: 1.1.0
Easy!

Easy and simple to use!

KellosityVersion: 1.7
Very easy!

Great especially for new injectors!!

Student Nurse moo mooVersion: 1.2.0
Great!

Great app!! Very helpful! Wish it had comfortex 0.5 mL syringe

UnknownhjyfxbVersion: 1.7
Love it!!!

Love this app!! Only wish it had comfort fox .5cc syringe

InjectormamaVersion: 1.7
Simple but please add

Love this little app! So easy!!!

Biwistyle1Version: 1.2.0
Great

Also refer back to this app. Love it!!!

JmaksionVersion: 2.0
Life saver

Absolutely love this app, greatest invention ever

N-jectorVersion: 3.0.2
The app performs as intended

I don't know why people are giving it low ratings. It has a simple, basic, and user-friendly interface. I use it for botulinum toxin dosing. It's very practical.

AnonimustafaVersion: 2.0.3

Nject Negative Reviews and Ratings

Great app

Love that this app makes it easy to see the dosages with different dilution amounts. The only negative I wish it didn’t have bugs. Today I was trying to use it and it won’t let me pick the syringe. I’ve tried deleting the app and restarting my phone. The problem is still there.

Gianinne28123Version: 1.7
Something is wrong

I used to love this app but now cannot use as it closes out before i can add the syringe on my iPad and on my phone I cannot even add the syringe. I think since the semiglutide ad is now at the top I can’t use the calculation!

WconferVersion: 2.0
Unable to use for anything but semaglutide

I signed up for this app and paid and I could never navigate away from the first page for semaglutide. It appears from the app description you can use this for other injectables. I would never have gotten this and paid for it had I known this. Very misleading.

Annoyed nurse injectorVersion: 2.0.2
Buggy

After the update the app does not work properly. After inputting the units and dilution, it kicks you out if you attempt to select syringe. I have tried numerous times and it shuts down each time I get to the syringe selection.

1 JesusVersion: 2.0
App not working

I was excited to try this app out so I downloaded it and went right to open it up. After plugging in my units, and reconstitution amount it is not giving me any options of syringes in the dropdown. It just says no options loaded. Save your money!

Quine xVersion: 2.0.3
Bugs

It still won’t get off of a single drug screen, for me semaglutide. There is no BACK button, and if I press info it just repeatedly shows leave a review window. I’ve uninstalled and reinstalled a couple times. I wish it would work

Jp John jrVersion: 2.0.2
Disappointed

Great app but some pictures of syringes are not helpful if you can’t read the numbers especially the .50 ml syringe

Claudine 1127Version: 3.0.1
No longer works

I used to use this app often for tox calculations. So many changes have been made, it no longer does that. Have deleted, reloaded, updated. It no longer works !

Un-HapoyVersion: 6.0.0
Will not give tox options

This app does not give you the option of dysport / botox/ etc . Dysport dilution is different. So not a very useful app. Dilute 2.5cc with your 100 Unit tox and you’ll have 40 Units in a 100 unit syringe (1.0cc) Or 20 units in a 0.5 Syringe . You’re welcome !

SarrafsaraVersion: 3.0.1
Decimal

I think this is great but I can’t enter a decimal point Eg 2.5 . I can’t find the period so I can put on the ml for dilution. Can you let me know how to add a decimal? Thank you

Fam Vaca 39Version: 1.7
Syringe selection

The app doesn’t have Comfortox syringes listed as an option for use with toxin dilution

Superior StreetVersion: 3.0.1
No longer working

No longer allowing me to select the syringe, only says no data.

SteffybishVersion: 2.0.3
No TB syringe.

No TB syringe included which is honestly the most important differentiation between the Insulin vs. TB ratios. Add a 1mL TB syringe.

Jiminy slickVersion: 2.0.3
No Syringe Options

Paid for the app but it doesn’t have a drop down menu with any options for syringes. It’s empty with no choices. Useless.

Sonny1979Version: 2.0.3
Incorrect Syringe

The Comfortox syringe picture is incorrect. What is displayed is a insulin syringe. Please correct this. I have requested this correction > 1 year ago and was told it will get done. Thus far, it has not.

NP InjectorVersion: 3.0.0
Review

Force closing each time I try to open the app. Only medication that I am able to select is Semaglutide.

Bawilliams526Version: 2.0.2
Doesn’t work

Keeps kicking me out of app when i go to the last data entry/ calculations

Zooming in annoyedVersion: 2.0
Advertisement wont let you complete a calculation.

Semaglutide advertisement will not close so you can complete calculation.

Coolmama58!Version: 2.0.2
Not working

Every time I press select syringe the app just shuts down

BeautyjectsVersion: 2.0
Not working

App keeps closing down on me before calculating

Cmat15Version: 2.0
Syringes

What happened to the comfortox syringes?? These are what most of us are using, the .3 and the .5??

Hhg go cf GNC f rnVersion: 3.0.1
Units only

This app is only relevant for medication which is dosed in units. Not helpful for medications in mg/ml

Injector TBVersion: 1.7

Nject Screenshots

Nject iPhone Screenshot 1
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Nject iPhone Screenshot 3
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Nject iPhone Screenshot 5