CallTimer vs Back translation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CallTimer
This utility app helps you monitor call durations with customizable alarms. It's designed for simplicity, allowing users to set notifications for specific call lengths, making it useful for managing unlimited calling plans.
- Measure call time
- Set customizable alarms
- Receive notifications
- Vibration alerts
- Simple interface
- Select numbers from phone book
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CallTimer will measure the call time ,depending on the alarm that you set for notify.Especially the unlimited calling within 5 minutes , to a 10-minute telephone call unlimited plan , I think that useful . Since the aim of the app that can be used by anyone,it made as much as possible simple interface . User guide: 1、Set a alarm with you want to be notify. 2、Input the phone number or choose a number from phone book. 3、Call with green button. ※ Notify method : Notifications + Vibration if it not work or you have any requests , Please contact us with support site.
Back translation
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Perform back translation at the same time The accuracy of the translation result is expressed as a score (0.0 to 1.0) indicating the degree of semantic similarity between the original sentence and the translated sentence. The evaluation value is calculated by sentence embedding (two strings are expressed as vectors and the distance between the two vectors). The evaluation value is the semantic distance between two sentences, and the higher the similarity (the higher the translation accuracy), the higher the value is 0.
Screenshots
Verdict
The clearest difference is update cadence: Back translation at fortnightly against CallTimer's monthly. CallTimer's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CallTimer ships an update monthly, Back translation fortnightly. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.
| Parameter | CallTimer | Back translation |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (5 ratings) — better | — |
| Positive reviews | 22.6% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Monthly | Fortnightly — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 9 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Chunxu Qiu | Hideaki Uchikoshi |
In-app purchases
CallTimer
No in-app purchases
Back translation
No in-app purchases
Questions
Is CallTimer free?
Is Back translation free?
Do CallTimer or Back translation have ads?
Which is updated more often, CallTimer or Back translation?
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