# Kitty Keep™ vs Backpack Viking

The clearest difference is review sentiment: Kitty Keep™ at 96% against Backpack Viking's 15%. Kitty Keep™ also leads on rating (4.9 vs 4.5) and ratings volume (4.5K vs 338). Backpack Viking's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Kitty Keep™ sells 32 one-off in-app purchases and Backpack Viking sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Kitty Keep™ holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Kitty Keep™ has 4.5K ratings behind it against 338, so its average is the more settled of the two. Written reviews point the same way: 96% of Kitty Keep™'s written reviews are positive against 15% of Backpack Viking's.

Kitty Keep™ ships an update fortnightly, Backpack Viking weekly. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Kitty Keep™ | Backpack Viking |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (4.5K ratings)](https://appshunter.io/ios/app/kitty-keep/id6476017989/reviews)** | [4.5 (338 ratings)](https://appshunter.io/ios/app/backpack-viking-merge/id6505057874/reviews) |
| Number of ratings | **4.5K** | 338 |
| Positive reviews | **95.6% of reviews** | 15.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 366 MB | 181 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Funovus LLC](https://appshunter.io/developer/1474891913) | [Potato Play Pte. Ltd.](https://appshunter.io/developer/1467734917) |

## What reviewers say

### Kitty Keep™

[App page](https://appshunter.io/ios/app/kitty-keep/id6476017989)

Embark on an offline tower defense adventure featuring adorable cat heroes. Strategize to grow your castle and defend against sea creature invaders using unique cat abilities. Enjoy a blend of idle and TD gameplay with auto-battle rewards.

**Highlights:** Offline tower defense gameplay, Cute cat hero units, Castle growth and upgrades, Idle/Auto-battle rewards, Level up unique cat heroes, Defend against sea creatures

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

**In-app purchases (32)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Hour Auto Battle | $3.99 | one-time |
| Handful of Gold | $3.99 | one-time |
| Pile of Gold | $5.99 | one-time |
| Basic Mine Pack | $5.99 | one-time |
| More Gems | $5.99 | one-time |
| Event Pass | $5.99 | one-time |
| Pouch of Potions | $5.99 | one-time |
| Basic Starter Pack | $5.99 | one-time |
| 50 Gems | $5.99 | one-time |
| Event Starter Pack | $5.99 | one-time |
| Event Hero Pack | $5.99 | one-time |
| Treasure Pile | $5.99 | one-time |
| Offline boost 1 | $5.99 | one-time |
| Event Pass | $9.99 | one-time |
| Treasure Trove | $11.99 | one-time |
| Secret Lab Bundle | $11.99 | one-time |
| 100 Gems | $11.99 | one-time |
| Event Premium Pass | $11.99 | one-time |
| Remove Ads Bundle | $11.99 | one-time |
| Ultra Chests | $12.99 | one-time |
| Chest of Potions | $12.99 | one-time |
| Regal Mine Pack | $12.99 | one-time |
| Offline boost 2 | $12.99 | one-time |
| Pieces of Potions | $23.99 | one-time |
| Event Premium Pass | $24.99 | one-time |
| Chest of Mithril | $34.99 | one-time |
| Big Amount of Potions | $34.99 | one-time |
| Treasure Hoard | $34.99 | one-time |
| Huge Amount of Potions | $59.99 | one-time |
| Wagon of Mithril | $59.99 | one-time |
| 1300 Gems | $119.99 | one-time |
| Giant Amount of Potions | $119.99 | one-time |

**What reviewers like**

- 🚀 Fun and addictive gameplay
- 👍 Cute and charming art style
- 🚀 Quick progress and upgrades
- 👍 No forced ads
- 👍 Engaging tower defense mechanics

**What reviewers complain about**

- 🐛 Difficulty spike at higher levels
- 💰 Potential pay-to-progress issues
- 🐛 Repetitive gameplay over time
- 🐛 Occasional crashes or bugs

**Reported bugs**

- Crashes during high-level waves
- Progression roadblocks at certain points
- Inconsistent performance on older devices

**Requested features**

- More cat variety and customization
- Expanded event and challenge modes
- Offline/idle progression features
- Improved level design and enemy variety


### Backpack Viking

[App page](https://appshunter.io/ios/app/backpack-viking-merge/id6505057874)

Embark on a Viking adventure, crafting and merging weapons in your backpack to defeat goblin hordes. Strategically manage your inventory, level up gear, and utilize item buffs to enhance combat abilities and restore peace.

**Highlights:** Craft and merge weapons, Backpack inventory management, Level up weapons, Item buffs and placement, Defend against goblin hordes, Viking warrior adventure

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bundle $0.99 | $0.99 | one-time |
| Bundle $2.99 | $2.99 | one-time |
| Bundle $3.99 | $3.99 | one-time |
| Bundle $4.99 | $4.99 | one-time |
| Bundle $6.99 | $6.99 | one-time |
| Bundle $9.99 | $9.99 | one-time |
| Bundle $14.99 | $14.99 | one-time |
| Bundle $19.99 | $19.99 | one-time |
| Bundle $39.99 | $39.99 | one-time |
| Bundle $49.99 | $49.99 | one-time |
| Bundle $99.99 | $99.99 | one-time |

**What reviewers like**

- 👍 Fun game
- 💡 Interesting backpack game concept

**What reviewers complain about**

- 🔍 Too many ads
- 🐛 Bugs and crashes
- 🔒 Forced ads to progress

**Reported bugs**

- Game freezes and crashes
- Enemies freeze at spawn point
- Progression issues with not getting credit for completing stages

**Requested features**

- Option to store gear between rounds
- Option to watch ads for extra bag space
- Adjustable 2x speed option


## Frequently asked questions

### Is Kitty Keep™ free?

Kitty Keep™ is free to download, with in-app purchases available.

### Is Backpack Viking free?

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

### Which has better reviews, Kitty Keep™ or Backpack Viking?

Kitty Keep™ is rated higher. Kitty Keep™ averages 4.9 out of 5 from 4.5K ratings, while Backpack Viking averages 4.5 from 338 ratings.

### Do Kitty Keep™ or Backpack Viking have ads?

Both Kitty Keep™ and Backpack Viking show ads.

### Which is updated more often, Kitty Keep™ or Backpack Viking?

Kitty Keep™ ships an update fortnightly, and Backpack Viking weekly. Most recently, Kitty Keep™ was updated on October 15, 2026 and Backpack Viking on October 13, 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.*