Comparison

CallTimer vs Back translation

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Measure call time
  • Set customizable alarms
  • Receive notifications
  • Vibration alerts
  • Simple interface
  • Select numbers from phone book
Features
Read full description

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.

About

Back translation

Features
Read full description

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

CallTimer4 screens
Back translation1 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CallTimer ships an update monthly, Back translation fortnightly. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 8 level
CallTimer versus Back translation: the parameters behind the verdict, then further details
ParameterCallTimerBack translation
PriceFreeFree
Rating4.6 (5 ratings) — better—
Positive reviews22.6% of reviews—
Number of ratings5 — better—
Update frequencyMonthlyFortnightly — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size9 MB37 MB
Age rating4+4+
DeveloperChunxu QiuHideaki Uchikoshi

In-app purchases

None

CallTimer

No in-app purchases

None

Back translation

No in-app purchases

Questions

Is CallTimer free?
CallTimer is free to download, with no in-app purchases.
Is Back translation free?
Back translation is free to download, with no in-app purchases.
Do CallTimer or Back translation have ads?
Both CallTimer and Back translation show ads.
Which is updated more often, CallTimer or Back translation?
CallTimer ships an update monthly, and Back translation fortnightly. Most recently, CallTimer was updated on October 8, 2026 and Back translation on October 3, 2026.

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