Time vs Just A 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.
Just A Calc
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This is Just A Calculator, nothing more, nothing less. The calculator will perform addition, subtraction, multiplication, division, percentage calculations, and find the square root. This will allow a maximum 38 digits to the left of the decimal and a maximum of 12 digits to the right of the decimal. This was developed primarily for the iPhone, however it will work on any iOS device.
Screenshots
Verdict
The clearest difference is update cadence: Time at every 6 days against Just A Calc's every 38 months. Just A Calc's advantage is iOS requirement (12.0 vs 17.6). 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.
Time ships an update every 6 days, Just A Calc every 38 months. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.
| Parameter | Time | Just A 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 38 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Kazuyuki Saito | Tom Doherty |
In-app purchases
Time
No in-app purchases
Just A Calc
No in-app purchases
