Refuel King vs JsutTime！
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Refuel King
Test your precision by filling a gas tank with the exact amount of fuel. Aim to be the best at dispensing the perfect quantity. It's a simple yet satisfying challenge for those who enjoy accuracy.
- Precise gas filling gameplay
- Satisfying accuracy challenge
- Simple and intuitive controls
- Aim for the 'Refuel King' title
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Try to fill it with precise amount of gas! Don't you feel good if you can fill it with precise amount of gas at a gas station? Let's fill the tank with precise amount of gas. How much gas are you going to fill in your tank today? Try your best to fill the tank perfectly! Aim at the Refuel King!
JsutTime！
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Can you stop the timer at exactly the right second? JustTime is a simple timing game that challenges your sense of time. Start the timer and stop it as close to your target time as possible! How to Play • Tap to start. • Tap again at your target time to stop. • Aim for the smallest time difference! 2-Player Mode Challenge your friends and family in local face-to-face matches!
Screenshots
Verdict
The clearest difference is ads: Refuel King at none against JsutTime！'s shown. Refuel King also leads on iOS requirement (6.1 vs 26.2). JsutTime！'s advantage is update cadence (every 3 weeks vs every 3 months). 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.
Refuel King ships an update every 3 months, JsutTime！ every 3 weeks. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.
| Parameter | Refuel King | JsutTime！ |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 6.1 — better | 26.2 |
| Further details — not scored | ||
| Size | 11 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | kon sugimoto | Kyouta Oshima |
In-app purchases
Refuel King
No in-app purchases
JsutTime！
No in-app purchases
