# Upside Down vs Epic Idle War

The clearest difference is rating: Epic Idle War at 5.0 against Upside Down's 4.6. Epic Idle War also leads on update cadence (every 2 weeks vs every 6 weeks) and review sentiment (53% vs 36%). Upside Down's advantage is monetization model (ad-supported vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Upside Down sells 10 one-off in-app purchases and Epic Idle War sells 16 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Epic Idle War holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 589 and 2.3K respectively. Written reviews point the same way: 36% of Upside Down's written reviews are positive against 53% of Epic Idle War's.

Upside Down ships an update every 6 weeks, Epic Idle War every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Upside Down | Epic Idle War |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (589 ratings)](https://appshunter.io/ios/app/upside-down-strange-world/id6751249961/reviews) | **[5.0 (2.3K ratings)](https://appshunter.io/ios/app/epic-idle-war-backpack-master/id6760803330/reviews)** |
| Number of ratings | 589 | **2.3K** |
| Positive reviews | 35.7% of reviews | **52.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 849 MB | 396 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Supercent Inc.](https://appshunter.io/developer/1571435385) | [Tekifun LTD](https://appshunter.io/developer/1571888675) |

## What reviewers say

### Upside Down

[App page](https://appshunter.io/ios/app/upside-down-strange-world/id6751249961)

Embark on an action-packed adventure into a shadowy dimension to rescue a kidnapped friend. Explore mysterious landscapes, battle terrifying creatures with thrilling gunplay, and upgrade your gear to overcome challenges and uncover secrets.

**Highlights:** Explore a mysterious world, Engaging storyline, Dynamic combat with gunplay, Resource management and rebuilding, Upgrade and merge equipment, Strategic battles against challenging enemies

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| starterbundle_0.99 | $0.99 | one-time |
| handfulgems_0.99 | $0.99 | one-time |
| bunchgems_4.99 | $4.99 | one-time |
| cpboffer1_9.99 | $9.99 | one-time |
| pilegems_9.99 | $9.99 | one-time |
| noads_13.99 | $13.99 | one-time |
| cpboffer2_19.99 | $19.99 | one-time |
| pouchgems_19.99 | $19.99 | one-time |
| vaultgems_49.99 | $49.99 | one-time |
| treasureboxgems_99.99 | $99.99 | one-time |


### Epic Idle War

[App page](https://appshunter.io/ios/app/epic-idle-war-backpack-master/id6760803330)

Engage in arcade-style shooting with strategic bag management and merge mechanics. Upgrade weapons and tanks to battle through war zones and defeat bosses. Enjoy idle progression and offline rewards.

**Highlights:** Idle army progression, Strategic bag management, Merge guns and gear, Personalized garage upgrades, Real-time PvE battles, Offline rewards

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Pack | $0.99 | one-time |
| Newbie pack | $0.99 | one-time |
| Entry Pack | $0.99 | one-time |
| Railgun Bundle 2 | $1.99 | one-time |
| RailGun Unlock | $4.99 | one-time |
| Sentinel Pack | $4.99 | one-time |
| Monthly card | $4.99 | one-time |
| Medium Pack | $4.99 | one-time |
| Crew pack | $4.99 | one-time |
| Seasonal Pass | $6.99 | one-time |
| Large Pack | $9.99 | one-time |
| Tank pack | $9.99 | one-time |
| Lifetime card | $9.99 | one-time |
| Super Deal | $9.99 | one-time |
| Lifetime card | $14.99 | one-time |
| Value Pack | $19.99 | one-time |


## Frequently asked questions

### Is Upside Down free?

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

### Is Epic Idle War free?

Epic Idle War is free to download, with in-app purchases available.

### Which has better reviews, Upside Down or Epic Idle War?

Epic Idle War is rated higher. Upside Down averages 4.6 out of 5 from 589 ratings, while Epic Idle War averages 5.0 from 2.3K ratings.

### Do Upside Down or Epic Idle War have ads?

Both Upside Down and Epic Idle War show ads.

### Which is updated more often, Upside Down or Epic Idle War?

Upside Down ships an update every 6 weeks, and Epic Idle War every 2 weeks. Most recently, Upside Down was updated on October 24, 2026 and Epic Idle War on October 25, 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.*