Back vs ELMCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Back
This utility app subtracts entered time values from a starting point of 60:00. It allows for easy deletion of individual entries or clearing all values to start fresh. Ideal for quick time calculations.
- Subtracts entered time values
- Starts at 60:00
- AC button to clear all
- Swipe to delete individual entries
- Simple user interface
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The Back-Time Calculator application allows you to enter time values to determine a back-time. The calculator starts at 60:00. You enter your time and press the enter button. Your time is subtracted from the current back-time value. When you want to start over, press the AC button to clear all entered values. You can also swipe individual times in the list to delete individual time entries.
ELMCheck
Verify the authenticity and functionality of your OBD-II scanner. This app runs comprehensive tests on ELM327 commands to report supported features, ensuring safe and reliable use with your vehicle.
- Authenticity testing for OBD-II scanners
- Comprehensive ELM327 command test suite
- Reports actual supported features
- Ensures safe scanner usage
- Basic tests are free
- Unlock full suite with in-app purchase
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Check the authenticity of your OBD-II scanner with ELMCheck. Most OBD-II scanners on the market use some variation of ELM327, but did you know that many scanners use clones of the original ELM327? It can be hard to tell, because these clones will work well enough for basic use but fail in unexpected scenarios. This is where ELMCheck comes in. ELMCheck offers a comprehensive set of test cases that cover the entire documented set of ELM327 commands. Regardless of which version your scanner says it is, ELMCheck can provide a comprehensive report of the features that are actually supported. Get the confidence you need to use your OBD-II scanner on your vehicle safely. ELMCheck is free to run basic tests. An in-app purchase will unlock the full test suite.
Screenshots
Verdict
The clearest difference is price: ELMCheck at Free against Back's $0.99. ELMCheck also leads on update cadence (every 10 days vs every 7 months). Back's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 18). On rating, review sentiment, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
ELMCheck is free to download; Back costs $0.99 up front. ELMCheck sells 1 one-off in-app purchase. Back asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Back against 5.0 for ELMCheck. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Back ships an update every 7 months, ELMCheck every 10 days. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.
| Parameter | Back | ELMCheck |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 7 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 — better | 18 |
| Further details — not scored | ||
| Size | 4 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Goodman Productions | Fearless design, LLC |
Customer experience
Back
ELMCheck
In-app purchases
Back
No in-app purchases
ELMCheck
- Comprehensive testing$2.99
