Triptoy vs Underground
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Triptoy
Explore over 70 unique interactive visual experiences designed for relaxation and immersion. This app offers mesmerizing effects inspired by science and art, perfect for short breaks or extended engagement.
- Over 70 unique interactive toys
- Relaxing and engrossing gameplay
- Mesmerizing visual effects
- Inspired by science and art
- Calm and meditative experience
- Excellent soundtrack
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Prepare to get your mind blown by this one-of-a-kind interactive visual kaleidoscope of experiences. Each of the 70+ toys are designed to be thoroughly relaxing and engrossing as a perfect way to occupy your attention during those tiny gaps in your day, or to get lost in for hours at a time. Developed over the course of two years in 2016-2017 and recently revived for modern phone hardware, Triptoy blossomed out of a love for shader effects, chaotic systems, and cellular automata. Over time, Triptoy grew to incorporate ideas from mathematics, physics, computer graphics, biology, chemistry, computer science, and abstract art. Many of the toys are inspired by or directly modeled after real physical phenomena and mathematical systems, but with an emphasis on aesthetic appeal and interactivity. + Over 70 unique toys in one app! + Mesmerizing interactive experiences! + Calm and relaxing gameplay experience! + Mind-blowing visual effects unlikely any other app!
Underground
Manage a post-apocalyptic underground bunker, balancing resources, people's needs, and external threats. Build rooms, accept survivors, and guide your community's development through strategic decisions and mini-games.
- Build and manage over 40 types of rooms
- Balance essential resources like food, water, and energy
- Manage individual survivor skills, health, and stress
- Accept or reject new survivors at your gates
- Explore tunnels, gather loot, and trade with friends
- Engage in mini-games for resources and event outcomes
- Play offline with time pausing when the app is closed
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The world has fallen. You are the last hope for those knocking at your gates. Underground is a deep bunker-management sim where every decision echoes through your food, water, power — and your people's spirits. Build compartments across three floors, take in survivors at the airlock, keep your resources in balance, and don't let the bunker go dark. What's waiting for you: • A living bunker — 40+ compartment types: generator room, farm, med bay, laboratory, armory, district map, the old metro and more. Every room works differently and demands your attention. • Resources with consequences — power, water, food, air, parts, fuel. Run out of water and newcomers will walk right past your gates. Overheat the generator and an accident is only a matter of time. • People, not numbers — every resident has skills, health, stress and relationships. Quarrels, illness, theft, panic — incidents won't wait: you have limited time to solve a problem before it gets worse. • Arrivals at the gate — survivors keep coming to the airlock. Let them in, turn them away, or send them off with rations? Your bunker's reputation decides who shows up tomorrow. • Your own path — fortress, radio contact, autonomy, science, evacuation or a return to the surface. Goals will show you where to grow next. • The metro and recon — explore the tunnels, gather loot, trade with friends and fight off threats in the corridors. • Mini-games that matter — harvest crops, repair equipment, calm a panic: quick games earn resources and change how events end. • Friends in the game — add friends, meet their survivors at your gates, exchange resources and earn bonuses for playing together. • Play at your own pace — minimize the app and time in the bunker stops. Come back and pick up right where you left off. Who this game is for: If you love Fallout Shelter, This War of Mine, or management games with personality — this one is full of "what if I try it this way?" moments. Not a five-minute arcade, but a bunker that grows with you. Download. Open the airlock. Decide who gets in first.
Screenshots
Verdict
The clearest difference is in-app purchases: Triptoy at none against Underground's 5. Triptoy also leads on ads (none vs shown) and review sentiment (100% vs 73%). Underground's advantage is update cadence (every 3 days vs every 57 months) and chart position (#124 vs unranked). On price, rating, monetization model 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. Underground sells 5 one-off in-app purchases. Triptoy asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Triptoy against 5.0 for Underground. That said, the two scores are not equally well evidenced: Triptoy has 43 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 100% of Triptoy's written reviews are positive against 73% of Underground's.
Triptoy ships an update every 57 months, Underground every 3 days. Both last shipped on October 21, 2026.
| Parameter | Triptoy | Underground |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (43 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 72.5% of reviews |
| Number of ratings | 43 — better | 6 |
| Update frequency | Every 57 months | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Paid |
| Best chart rank | — | #124 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 14 MB | 35 MB |
| Age rating | 4+ | 9+ |
| Developer | Bruce Hill | Sunspear Software LLC |
Customer experience
Triptoy
Underground
In-app purchases
Triptoy
No in-app purchases
Underground
- Parts Crate (Small)$0.99
- Parts Crate (Medium)$1.99
- Supply Crate (Mixed)$1.99
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- Support the Shelter$2.99
- Parts Crate (Large)$3.99









