Calculator Quest vs Tempra
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Calculator Quest
This app merges a functional calculator with role-playing game elements. It offers a "Calc mode" for standard calculations, a fast-typing number game, and a mental arithmetic challenge.
- Standard calculator functionality
- Fast-typing number game
- Mental arithmetic time attack
- RPG elements
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A calculator and an RPG combine to form a miraculous hybrid! Includes bonus quick-typing game and math game! ※Rest assured, this app also works as a calculator. - Use for regular calculator operations! Calc mode! - Type the numbers and symbols as fast as you can! Quickdraw Colosseum! - Try your hand at the “mental arithmetic” time attack mode in Mental Math Kingdom!
Tempra
Sharpen your internal clock with this game designed to test and improve your time perception. Aim to match target times by focusing on your sense of rhythm and timing.
- Test time accuracy
- Increase time precision
- Focus on internal sense of time
- Relaxing gameplay
- Simple objective
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Test and increase the accuracy and precision of your sense of time. For each trial, your goal is to get as close as possible to the displayed target time. Breathe... relax, and focus on your internal sense of time. Designed and built by Che-Wei Wang MIT Media Lab, Playful Systems
Screenshots
Verdict
The clearest difference is rating: Tempra at 5.0 against Calculator Quest's 4.1. Tempra also leads on review sentiment (100% vs 72%). Calculator Quest's advantage is update cadence (every 4 months vs every 69 months) and ratings volume (14 vs 4). On price, ads, in-app purchases and monetization model 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.
Tempra holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 14 and 4 respectively. Written reviews point the same way: 72% of Calculator Quest's written reviews are positive against 100% of Tempra's.
Calculator Quest ships an update every 4 months, Tempra every 69 months. The most recent releases landed on September 28, 2026 and September 21, 2026 respectively.
| Parameter | Calculator Quest | Tempra |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (14 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 72.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 14 — better | 4 |
| Update frequency | Every 4 months — better | Every 69 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 9 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Masakazu Yonehara | CW&T |
Customer experience
Calculator Quest
Tempra
Bugs and requests
Calculator Quest
Reported bugs
4 issues- App crashes immediately after killing monsters
- Ads showing up on the top blocking off numbers
- App needs to be updated for iOS 11
- Can't use on new iPhone
Requested features
13 requests- Pay to remove ads option
- Offline play option
- More games to play
- Increase calculation level
- Add different calculation types (add, subtract, multiply, divide)
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- Add maps and companions for RPG elements
- Make game the main focus, not calculator
- Add hidden command games
- More gameplay features
- Enhance calculation function
- Make questions harder with progression
- Add items like skipping problems
- Update for newer iOS versions
Tempra
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator Quest
No in-app purchases
Tempra
No in-app purchases









