# Sumdog vs StarPlanner

The clearest difference is update cadence: StarPlanner at fortnightly against Sumdog's every 2 months. Sumdog's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sumdog sells 1 in-app purchase, starting at $8.99 per month and StarPlanner sells 6 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Sumdog ships an update every 2 months, StarPlanner fortnightly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sumdog | StarPlanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (1.6K ratings)](https://appshunter.io/ios/app/sumdog/id1145809959/reviews)** | — |
| Number of ratings | **1.6K** | — |
| Positive reviews | 63.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 135 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sumdog Ltd.](https://appshunter.io/developer/644331332) | [PETRO VAKULENKO](https://appshunter.io/developer/6795234946) |

## What reviewers say

### Sumdog

[App page](https://appshunter.io/ios/app/sumdog/id1145809959)

This app offers personalized math and spelling practice for children aged 5-14 through engaging games and adaptive learning. It uses diagnostic tests to tailor learning journeys and provides virtual rewards to motivate students. Parents can set up accounts for home use or connect to school-assigned work.

**Highlights:** Personalized adaptive learning, Engaging single and multiplayer games, Thousands of standards-aligned questions, Virtual coin rewards system, 3D avatar and house personalization, Diagnostic assessment

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Family Membership | $8.99 | per month |

**What reviewers like**

- 🎮 Fun and engaging games
- 🏆 Competitive leaderboards
- 🏠 Customizable avatar and house
- 📚 Helps with learning math, spelling, and grammar
- 🏫 Useful for schools and teachers

**What reviewers complain about**

- 🐛 Glitches and bugs
- 🕰️ Slow loading times
- 🔒 Limited access to premium features without subscription
- 🤖 Weird or unappealing 3D character models
- 🔍 Lack of instructions for some games

**Reported bugs**

- Flower Defenders game not working properly
- Goalz game not registering shots correctly
- Sudden logout issues
- Incompatibility with certain devices or browsers

**Requested features**

- Add more free games
- Bring back old 2D games
- Allow interaction with house and garden items
- Improve multiplayer functionality
- Add more customization options for avatar and house


### StarPlanner

[App page](https://appshunter.io/ios/app/starplanner-stargazing/id6806637140)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StarPlanner Pro Monthly | $0.99 | per month |
| StarPlanner Pro Yearly | $9.99 | per year |
| Support Development — Small | $2.99 | one-time |
| Medium Support Tip | $4.99 | one-time |
| Large Support Tip | $9.99 | one-time |
| StarPlanner Pro (Lifetime) | $16.99 | one-time |


## Frequently asked questions

### Is Sumdog free?

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

### Is StarPlanner free?

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

### Do Sumdog or StarPlanner have ads?

Neither Sumdog nor StarPlanner shows ads.

### Which is updated more often, Sumdog or StarPlanner?

Sumdog ships an update every 2 months, and StarPlanner fortnightly. Most recently, Sumdog was updated on October 26, 2026 and StarPlanner on October 24, 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.*