Red Hearts vs Underdark
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Red Hearts
Engage in quick action-packed battles, dodging traps and throwing shurikens through miniature dungeons. This game is actively being developed with new content planned.
- Explore tiny dungeons
- Battle monsters
- Dodge traps
- Throw shurikens
- Quick bursts of action
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Explore tiny dungeons in a game full of heart! Battle monsters, dodge traps, and throw shurikens in quick bursts of action. Red Hearts is currently in development by two brothers with lots more in the works: new enemies, dungeons, and secrets to discover. If you love it or have feedback, please let us know. Thanks for playing!
Underdark
Defend the Eternal Flame from relentless dark forces in this tactical tower defense game. Strategically place towers, choose powerful buffs, and level up unique heroes to forge an impenetrable defense. Enjoy one-handed gameplay for strategic fun anytime, anywhere.
- Defend the Eternal Flame
- One-handed gameplay
- Customize defense strategy
- Level up heroes
- Strategic tower placement
- Choose buffs
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Defend the Flame from the dark! Level up, strategically place towers, and choose buffs to grow stronger. Keep the light alive! Defend the Eternal Flame: Experience the thrill of defending the flame from hordes of dark forces that besiege it! Feel the exhilaration as you clear stages, with each victory more satisfying than the last. One-Handed Gameplay: Enjoy easy-to-master controls, designed for one-handed play. Perfect for strategic fun anytime, anywhere. Customize Your Defense Strategy: Select buffs and strategically place towers to forge your path of resistance. As you level up and choose your growth buffs, your defense becomes an impenetrable fortress. Heroic Stand: Choose your guardians to stand against the night. Each hero brings unique abilities to the battlefield. Earn trophies, level up, and enhance your heroes to ensure the flame flickers on through the darkest nights!
Screenshots
Verdict
The clearest difference is in-app purchases: Red Hearts at none against Underdark's 35. Red Hearts also leads on ads (none vs shown) and review sentiment (100% vs 72%). Underdark's advantage is ratings volume (4.1K vs 6) and rating (4.8 vs 4.5). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Underdark sells 34 one-off in-app purchases. Red Hearts asks for nothing beyond the download.
Underdark holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Underdark has 4.1K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 100% of Red Hearts's written reviews are positive against 72% of Underdark's, so the app with the better star average is not the one people write more warmly about.
| Parameter | Red Hearts | Underdark |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (6 ratings) | 4.8 (4.1K ratings) — better |
| Positive reviews | 100.0% of reviews — better | 72.0% of reviews |
| Number of ratings | 6 | 4.1K — better |
| Update frequency | — | Every 4 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 42 MB | 520 MB |
| Age rating | 9+ | 4+ |
| Developer | Brothers Flint | SeungHo Chung |
Customer experience
Red Hearts
Underdark
Bugs and requests
Red Hearts
Not enough reviews yet to summarise bugs or requests.
Underdark
Reported bugs
3 issues- Goblin tower factory causing game slowdown
- Consecutive login rewards reset after updates
- Invisible towers in multiplayer
Requested features
5 requests- Ability to rotate towers
- Move towers after placement
- More enemy variety and animations
- Improved co-op mode
- Simplified progression system
In-app purchases
Red Hearts
No in-app purchases
Underdark
- Event Package 1$0.99
- daily_package_01$0.99
- season_growth_1$0.99
Show 31 moreShow fewer
- dailyshop_1$1.99
- blade_pakcage$2.99
- daily_package_02$2.99
- exp_2x$3.49
- skin_30501$3.49
- Event Package 2$3.99
- pet_package$4.99
- weekly_package_01$6.99
- add_speed$7.49
- pass_hero_115$7.49
- pass_hero_102$7.49
- pass_hero_110$7.49
- season_superpass_1$7.99
- pack_remove_ads$7.99
- daily_package_03$7.99
- hero_legend_santa$8.99
- hero_legend_tower$8.99
- hero_legend_armor$8.99
- Event Package 3$8.99
- hero_legend_joker$8.99
- hero_legend_necromancer$8.99
- hero_legend_chicken$8.99
- tower_legend_614$8.99
- ud_pack_20106$8.99
- tower_legend_628$8.99
- pack_remove_ads2$10.99
- Event Package 4$12.99
- season_level_1$16.99
- season_stage_1$16.99
- Event Package 5$17.99
- season_hyperpass_1$18.99
