# メモモモモ vs Deadline Backsolve

The clearest difference is price: メモモモモ at Free against Deadline Backsolve's $0.99. メモモモモ also leads on iOS requirement (14.2 vs 17.0). Deadline Backsolve's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On review sentiment, in-app purchases and device support there is nothing between them.

メモモモモ is free to download; Deadline Backsolve costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

メモモモモ ships an update every 2 months, Deadline Backsolve weekly. Both last shipped on October 25, 2026.

## The numbers

| Metric | メモモモモ | Deadline Backsolve |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 92.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Paid |
| Size | 18 MB | 4 MB |
| Requires iOS | **14.2** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hiroki Sato](https://appshunter.io/developer/1514602166) | [Daisuke Yamaguchi](https://appshunter.io/developer/880950899) |

## What reviewers say

### メモモモモ

[App page](https://appshunter.io/ios/app/id1577051088)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Deadline Backsolve

[App page](https://appshunter.io/ios/app/deadline-backsolve-planner/id6796252958)

This app helps you adjust project plans when deadlines are at risk. It calculates the shortfall and suggests concrete adjustments like extending deadlines or reducing scope. The interface is currently in Japanese only.

**Highlights:** Calculates shortfall and suggests fixes, Adjusts plans based on available time, Learns user's real work pace, Offers recovery plan options, Focus timer that survives crashes, Offline functionality, JSON export/import for data transfer

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is メモモモモ free?

メモモモモ is free to download, with no in-app purchases.

### Is Deadline Backsolve free?

Deadline Backsolve costs $0.99, with no in-app purchases.

### Do メモモモモ or Deadline Backsolve have ads?

メモモモモ shows ads; Deadline Backsolve does not.

### Which is updated more often, メモモモモ or Deadline Backsolve?

メモモモモ ships an update every 2 months, and Deadline Backsolve weekly. Most recently, メモモモモ was updated on October 25, 2026 and Deadline Backsolve on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*