# Rainfall Calculator vs Jumpstash

The clearest difference is price: Jumpstash at Free against Rainfall Calculator's $2.99. Jumpstash also leads on update cadence (every 2 weeks vs every 29 months) and ratings volume (5 vs 1). Rainfall Calculator's advantage is rating (5.0 vs 4.2) and chart position (#176 vs unranked). On ads and in-app purchases there is nothing between them.

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

Rainfall Calculator holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Jumpstash has 5 ratings behind it against 1, so its average is the more settled of the two.

Rainfall Calculator ships an update every 29 months, Jumpstash every 2 weeks. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Rainfall Calculator | Jumpstash |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rainfall-calculator/id1446150880/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/jumpstash/id1465670860/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Best chart rank | **#176** | — |
| Size | 1 MB | 17 MB |
| Requires iOS | **13** | 16.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Michael Mackintosh II](https://appshunter.io/developer/1281426136) |

## What reviewers say

### Rainfall Calculator

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

**Currently charting:** #176 Top Paid · Productivity (US App Store)

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


### Jumpstash

[App page](https://appshunter.io/ios/app/jumpstash/id1465670860)

Securely store backup codes for your accounts in iCloud Keychain. Access them from any device logged into iCloud, ensuring you never lose access to your important services.

**Highlights:** Secure backup code storage, iCloud Keychain integration, Cross-device access, Account lockout prevention, Token generation backup

**In-app purchases:** none


## Frequently asked questions

### Is Rainfall Calculator free?

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

### Is Jumpstash free?

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

### Which has better reviews, Rainfall Calculator or Jumpstash?

Rainfall Calculator is rated higher. Rainfall Calculator averages 5.0 out of 5 from 1 ratings, while Jumpstash averages 4.2 from 5 ratings.

### Do Rainfall Calculator or Jumpstash have ads?

Neither Rainfall Calculator nor Jumpstash shows ads.

### Which is updated more often, Rainfall Calculator or Jumpstash?

Rainfall Calculator ships an update every 29 months, and Jumpstash every 2 weeks. Most recently, Rainfall Calculator was updated on September 9, 2026 and Jumpstash on September 14, 2026.

---

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