# Grantwetter vs Tempera

The clearest difference is in-app purchases: Tempera at none against Grantwetter's 2. Grantwetter's advantage is update cadence (every 6 days vs every 3 weeks) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Grantwetter sells 2 in-app purchases, starting at $1.99 per month. Tempera asks for nothing beyond the download.

Grantwetter ships an update every 6 days, Tempera every 3 weeks. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Grantwetter | Tempera |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tempera/id6761679524/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | — | Free |
| Size | 13 MB | 142 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Gerhard Kanzler](https://appshunter.io/developer/592322016) | [Xinyu Hong](https://appshunter.io/developer/1883449097) |

## What reviewers say

### Grantwetter

[App page](https://appshunter.io/ios/app/grantwetter/id1019320198)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grant Pass (Monthly) | $1.99 | per month |
| Grant Pass (Yearly) | $8.99 | per year |


### Tempera

[App page](https://appshunter.io/ios/app/tempera/id6761679524)

Experience weather as a visual ritual with 441 global cities rendered as miniature 3D scenes. See local time, weather conditions, and day/night cycles dynamically change. Offers hourly and multi-day forecasts, home screen widgets, and fast city switching for a personal weather experience.

**Highlights:** 441 global city scenes, Dynamic weather overlay, Day and night artwork, Home screen widgets, Hourly and multi-day forecasts, Fast city switching

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

**In-app purchases:** none


## Frequently asked questions

### Is Grantwetter free?

Grantwetter is free to download, with in-app purchases available.

### Is Tempera free?

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

### Do Grantwetter or Tempera have ads?

Neither Grantwetter nor Tempera shows ads.

### Which is updated more often, Grantwetter or Tempera?

Grantwetter ships an update every 6 days, and Tempera every 3 weeks. Most recently, Grantwetter was updated on October 24, 2026 and Tempera on October 12, 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.*