RenjiCalc vs MIT App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RenjiCalc
Read full descriptionHide full description
“500W for 6 minutes… so how long in my 800W microwave?” Solve that confusion instantly. From conversion to timer start, everything is smooth and effortless. Make your microwave more useful and easier to use. 【Features】 ・Easy wattage conversion: Enter the original wattage and heating time, and it instantly calculates the right time for your microwave. ・One-tap timer from history: Select frequently used items from history and start the timer without recalculating. ・Lock screen progress: Supports the latest iOS Live Activities, so you can check remaining time at a glance on the Lock Screen or Dynamic Island, even when your iPhone is locked. ・Multiple microwave presets: Save and switch between different microwaves, such as one at home and one at work. 【Recommended for】 ・People who often eat frozen foods or convenience store meals ・People who use high-power microwaves (700W/800W and above) ・Anyone who has ever overheated food by guessing the heating time
MIT App
Read full descriptionHide full description
Every day, we live surrounded by countless tasks. But what truly matters should always be just one thing. MIT is a simple app that helps you decide on one “most important thing” for today and focus on it. • In the morning, choose today’s MIT • At night, look back and record it That’s all. A quiet habit. It is not a checklist or a typical to-do app. MIT is an app for choosing what you value. Main features • Add one MIT per day • Reminders • Review in a calendar • Streak tracking So you don’t lose sight of your “one thing” in busy days.
Screenshots
Verdict
The clearest difference is in-app purchases: RenjiCalc at none against MIT App's 2. MIT App's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement 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. MIT App sells 2 one-off in-app purchases. RenjiCalc asks for nothing beyond the download.
RenjiCalc ships an update fortnightly, MIT App every 9 days. The most recent releases landed on September 16, 2026 and September 9, 2026 respectively.
| Parameter | RenjiCalc | MIT App |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 11 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | ken hasegawa | fromKK |
In-app purchases
RenjiCalc
No in-app purchases
MIT App
- Support Development$0.99
- Forgive Past Days$0.99









