# Word Memo vs Rainfall Calculator

The clearest difference is price: Word Memo at Free against Rainfall Calculator's $2.99. Word Memo also leads on update cadence (every 2 months vs every 29 months) and iOS requirement (8.0 vs 13). On ads, in-app purchases and device support there is nothing between them.

Word Memo is free to download; Rainfall Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Word Memo ships an update every 2 months, Rainfall Calculator every 29 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Word Memo | Rainfall Calculator |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rainfall-calculator/id1446150880/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 29 months |
| Monetization | — | Paid |
| Size | 4 MB | 1 MB |
| Requires iOS | **8.0** | 13 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Taku Inoue](https://appshunter.io/developer/412489390) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### Word Memo

[App page](https://appshunter.io/ios/app/word-memo/id486173527)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rainfall Calculator

[App page](https://appshunter.io/ios/app/rainfall-calculator/id1446150880)

Calculate potential rainwater harvest volume and cost savings. This tool helps determine annual water collection capacity based on rainfall and roof area, recommending optimal tank sizes for efficient water storage. It also allows for cost-saving analysis by comparing harvested water to mains water prices.

**Highlights:** Instant rainwater calculation, Cost savings evaluation, Minimum tank size recommendation, Supports various input units, Formula references included, Results copyable to other apps

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Word Memo free?

Word Memo is free to download, with no in-app purchases.

### Is Rainfall Calculator free?

Rainfall Calculator costs $2.99, with no in-app purchases.

### Do Word Memo or Rainfall Calculator have ads?

Neither Word Memo nor Rainfall Calculator shows ads.

### Which is updated more often, Word Memo or Rainfall Calculator?

Word Memo ships an update every 2 months, and Rainfall Calculator every 29 months. Most recently, Word Memo was updated on November 6, 2026 and Rainfall Calculator on November 2, 2026.

---

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