# Rocketwatchr vs TeslSizzo

The clearest difference is update cadence: TeslSizzo at weekly against Rocketwatchr's every 69 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Rocketwatchr sells 1 one-off in-app purchase and TeslSizzo sells 8 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Rocketwatchr ships an update every 69 months, TeslSizzo weekly. The most recent releases landed on October 9, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Rocketwatchr | TeslSizzo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (87 ratings)](https://appshunter.io/ios/app/rocketwatchr/id1544637294/reviews)** | — |
| Number of ratings | **87** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 69 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 60 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Inderjot Singh](https://appshunter.io/developer/636709926) | [LUSENROUE SIZZO](https://appshunter.io/developer/1709146885) |

## What reviewers say

### Rocketwatchr

[App page](https://appshunter.io/ios/app/rocketwatchr/id1544637294)

Stay updated on all upcoming rocket launches from major space agencies and companies. Watch live streams, view detailed schedules, and receive customizable notifications for launches, delays, and mission outcomes.

**Highlights:** View live launch streams, Upcoming launch schedules, Customizable notifications, Mission status updates, Launch cancellation/delay alerts, Mission success/failure notifications

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove all ads | $6.99 | one-time |


### TeslSizzo

[App page](https://appshunter.io/ios/app/teslsizzo/id6791012017)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Membership Watt Monthly | $4.99 | per month |
| Membership Watt Plus Monthly | $7.99 | per month |
| Membership Kilowatt Monthly | $9.99 | per month |
| Membership Kilowatt Plus Monthly | $12.99 | per month |
| Membership Watt Yearly | $49.99 | per year |
| Membership Watt Plus Yearly | $79.99 | per year |
| Membership Kilowatt Year | $99.99 | per year |
| Membership Kilowatt Plus Yearly | $129.99 | per year |


## Frequently asked questions

### Is Rocketwatchr free?

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

### Is TeslSizzo free?

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

### Do Rocketwatchr or TeslSizzo have ads?

Both Rocketwatchr and TeslSizzo show ads.

### Which is updated more often, Rocketwatchr or TeslSizzo?

Rocketwatchr ships an update every 69 months, and TeslSizzo weekly. Most recently, Rocketwatchr was updated on October 9, 2026 and TeslSizzo on October 4, 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.*