Time vs Duodecuple Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Time
This app simplifies time calculations for personal flight logs. It exclusively handles addition and subtraction of hours and minutes, automatically interpreting the last two digits of any input as minutes.
- Time addition
- Time subtraction
- Automatic minute interpretation
- Personal flight log focus
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A simple time calculator (hours + minutes) designed specifically for personal flight log calculations — it only performs addition and subtraction. The last two digits of any entered number are automatically treated as minutes.
Duodecuple Calc
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Display 12 calculators and perform calculations with each one.
Screenshots
Verdict
The clearest difference is ads: Time at none against Duodecuple Calc's shown. Time also leads on update cadence (every 6 days vs every 2 weeks). Duodecuple Calc's advantage is iOS requirement (15.8.3 vs 17.6). On price, 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.
Time ships an update every 6 days, Duodecuple Calc every 2 weeks. The most recent releases landed on June 25, 2026 and August 3, 2026 respectively.
| Parameter | Time | Duodecuple Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 days — better | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.8.3 — better |
| Further details — not scored | ||
| Size | 1 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuyuki Saito | Hideaki Uchikoshi |
In-app purchases
Time
No in-app purchases
Duodecuple Calc
No in-app purchases
Questions
Is Time free?
Is Duodecuple Calc free?
Do Time or Duodecuple Calc have ads?
Which is updated more often, Time or Duodecuple Calc?
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