# Wiggle Defender vs Grim Bounce

The clearest difference is rating: Grim Bounce at 4.7 against Wiggle Defender's 3.6. Grim Bounce also leads on review sentiment (100% vs 79%) and iOS requirement (13.0 vs 15.0). Wiggle Defender's advantage is ratings volume (14 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Wiggle Defender sells 40 one-off in-app purchases and Grim Bounce sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Grim Bounce holds the better App Store score, 4.7 against 3.6. Both are backed by a comparable volume of ratings — 14 and 3 respectively. Written reviews point the same way: 79% of Wiggle Defender's written reviews are positive against 100% of Grim Bounce's.

Wiggle Defender ships an update every 6 days, Grim Bounce every 8 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Wiggle Defender | Grim Bounce |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (14 ratings)](https://appshunter.io/ios/app/wiggle-defender-alien-butt-td/id6756547841/reviews) | **[4.7 (3 ratings)](https://appshunter.io/ios/app/grim-bounce/id6756644494/reviews)** |
| Number of ratings | **14** | 3 |
| Positive reviews | 78.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 days** | Every 8 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 538 MB | 547 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [Teamsparta Inc.](https://appshunter.io/developer/1624407423) | [HARVEST STAR INTERACTIVE LIMITED](https://appshunter.io/developer/1740099948) |

## What reviewers say

### Wiggle Defender

[App page](https://appshunter.io/ios/app/wiggle-defender-alien-butt-td/id6756547841)

Defend against endless waves of writhing alien monsters by strategically building your defenses. Evolve your combat abilities mid-battle with roguelike combinations and upgrade your equipment and skills in post-battle phases to prepare for increasingly powerful foes.

**Highlights:** Endless alien waves, Evolving monster threats, Roguelike combat builds, Mid-battle level-ups, Post-battle growth phase, Equipment and skill upgrades

**Features:** macOS Compatibility

**In-app purchases (40)**

| Purchase | Price | Billing |
| --- | --- | --- |
| wd_hidden_1 | $0.49 | one-time |
| wd_hidden_2 | $0.99 | one-time |
| wd_hidden_3 | $1.99 | one-time |
| wd_package_equipment_01 | $1.99 | one-time |
| wd_package_revival_1 | $1.99 | one-time |
| wd_product_gem_01 | $2.99 | one-time |
| wd_package_gem_1 | $2.99 | one-time |
| wd_package_new_1 | $2.99 | one-time |
| wd_package_equipment_02 | $3.99 | one-time |
| wd_package_revival_2 | $3.99 | one-time |
| wd_package_luckyroll2_3 | $3.99 | one-time |
| wd_limited_pack_1 | $4.99 | one-time |
| wd_product_gem_02 | $4.99 | one-time |
| wd_package_clear_05 | $4.99 | one-time |
| wd_package_luckyminion_3 | $4.99 | one-time |
| wd_pass_daily_2 | $4.99 | one-time |
| wd_hidden_4 | $5.99 | one-time |
| wd_membership_vip | $6.99 | one-time |
| wd_package_equipment_03 | $7.99 | one-time |
| wd_pass_luckyminion_2 | $9.99 | one-time |
| wd_pass_burgerpyramid_1 | $9.99 | one-time |
| wd_product_gem_03 | $9.99 | one-time |
| wd_pass_vanguard_3 | $9.99 | one-time |
| wd_package_clear_15 | $9.99 | one-time |
| wd_newbietraining | $9.99 | one-time |
| wd_ark_2 | $9.99 | one-time |
| wd_pass_ark_3 | $9.99 | one-time |
| wd_package_new_2 | $9.99 | one-time |
| wd_membership_vvip | $9.99 | one-time |
| wd_pass_daily_3 | $9.99 | one-time |
| wd_package_luckyroll2_4 | $9.99 | one-time |
| wd_pass_luckyroll2_2 | $9.99 | one-time |
| wd_package_equipment_04 | $14.99 | one-time |
| wd_package_clear_18 | $14.99 | one-time |
| wd_membership_vip_permanent | $17.99 | one-time |
| wd_product_gem_04 | $19.99 | one-time |
| wd_package_luckyroll2_5 | $19.99 | one-time |
| wd_membership_vvip_permanent_dc | $24.99 | one-time |
| wd_pass_level_2 | $29.99 | one-time |
| wd_membership_vvip_permanent | $34.99 | one-time |


### Grim Bounce

[App page](https://appshunter.io/ios/app/grim-bounce/id6756644494)

Engage in intense combat against endless waves of monsters using a diverse arsenal of unique weapons. Collect gold and materials to upgrade your stats and enhance your arsenal, unlocking devastating powers to crush your foes and become a legendary hero.

**Highlights:** Endless monster waves, Diverse weapon arsenal, Weapon and stat upgrades, Chest rewards, Unlockable powers

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diamond*60 | $0.99 | one-time |
| First Pack | $0.99 | one-time |
| Diamond*300 | $4.99 | one-time |
| Monthly Card | $6.99 | one-time |
| Diamond*680 | $9.99 | one-time |
| daily Pack | $9.99 | one-time |
| Battle Pass | $12.99 | one-time |
| Diamond*1280 | $29.99 | one-time |
| Diamond*3280 | $49.99 | one-time |
| Diamond*6480 | $99.99 | one-time |


## Frequently asked questions

### Is Wiggle Defender free?

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

### Is Grim Bounce free?

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

### Which has better reviews, Wiggle Defender or Grim Bounce?

Grim Bounce is rated higher. Wiggle Defender averages 3.6 out of 5 from 14 ratings, while Grim Bounce averages 4.7 from 3 ratings.

### Do Wiggle Defender or Grim Bounce have ads?

Both Wiggle Defender and Grim Bounce show ads.

### Which is updated more often, Wiggle Defender or Grim Bounce?

Wiggle Defender ships an update every 6 days, and Grim Bounce every 8 days. Most recently, Wiggle Defender was updated on October 30, 2026 and Grim Bounce 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.*