Comparison

Zen Brick vs OneThumbTower

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Zen Brick

This game offers a peaceful escape from daily chaos, allowing players to recharge their minds. Its simple mechanics and calming environment provide a satisfying experience for all ages, focusing on enjoyment and relaxation rather than speed or precision.

Highlights
  • Calming environment
  • Easy-to-learn mechanics
  • Peaceful escape
  • Focusing thoughts
  • Winding down
  • Gentle progression
  • Endless gameplay
Features
Read full description

Zen Brick is a calm place to break some bricks. Aim, fling a stream of balls up the board, and watch the descending numbered bricks fall away. No timers, no pressure, just the satisfying rhythm of a good run and the quiet pull of "one more turn." SIMPLE TO PLAY Drag to aim, release to fire. Your balls bounce, chip away at the bricks' numbers, and come back down so you can line up the next shot. The board edges down each turn, so clear it before it reaches the bottom. SPECIAL BRICKS Ordinary bricks are only the start. Bombs scatter shrapnel, vortexes swallow balls and scatter them back up the board, anvils drop with a heavy slam, and duplicators split every ball that hits them into two. Read the board and use them to set off a chain reaction. BUILD YOUR SCORE Power-ups grow your stream of balls. Chain hits in a single turn for a rising score multiplier, and clear the whole board to double that turn's points. KEEP YOUR RUN GOING Game over doesn't have to be the end. Every run gets one free continue: the board clears and you keep your level and score. Want more? Replay tokens (an optional in-app purchase) let you continue up to three more times in a run. CHASE THE LEADERBOARD Game Center leaderboards track the highest score and the highest level reached. Climb them at your own pace, or just play for yourself (it's entirely optional). QUIET BY DESIGN Soft colors, gentle generative ambient sound, and deliberately understated effects. Zen Brick is built to be played in a calm few minutes: on the couch, on a train, anywhere. FOR YOUR PHONE One-handed portrait play, tuned for iPhone. FREE TO PLAY, NO ADS No ads. No tracking. No sign-up to play. Every level and every brick is free, and the game runs on your device. The extras are optional: Game Center leaderboards, replay tokens if you want more continues, and skins that change how the board looks. Download now and take your first shot. EULA : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy : https://games.isak.tech/privacy Support : https://games.isak.tech/support

About

OneThumbTower

Features
Read full description

One-Thumb Tower is a tower defense you can actually play with one hand - in bed, on the train, or while holding a sleeping kid. Every control is built for a single thumb. Drag a tower from the tray onto the hex grid to place it. Tap a tower to upgrade it. Long-press to open a radial menu right where your thumb already is - no pinching, no two-finger zoom, no reaching for the far corner of the screen. Everything lives in the thumb zone. Each run is a bite-sized roguelike. Draft 3 towers from your unlocked pool, then defend through 8 fast 90-second waves on a freshly generated hex map. Climb the meta ladder between runs to unlock new towers and push your best wave higher. A daily seeded run lets everyone fight the same map and chase the local leaderboard. FEATURES - True one-handed play: drag to place, tap to upgrade, long-press radial menu - Procedurally generated hex maps - no two runs alike - Roguelike runs: draft 3 towers, survive 8 waves, climb the ladder - 90-second waves designed for short sessions - Daily seeded challenge with a local leaderboard - Persistent meta progression: unlock new towers - Endless and daily modes - Dark mode and Dynamic Type support - Play free, or unlock Premium once to remove ads forever and open every tower Free to play with optional ads. Go Premium with a single one-time purchase - no subscriptions.

Screenshots

Zen Brick4 screens
OneThumbTower1 screens

Verdict

The call

The clearest difference is in-app purchases: Zen Brick at none against OneThumbTower's 1. Zen Brick also leads on ads (none vs shown). OneThumbTower's advantage is update cadence (every 3 days vs fortnightly). On price, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OneThumbTower sells 1 one-off in-app purchase. Zen Brick asks for nothing beyond the download.

UpkeepUpdate frequency

Zen Brick ships an update fortnightly, OneThumbTower every 3 days. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
Zen Brick versus OneThumbTower: the parameters behind the verdict, then further details
ParameterZen BrickOneThumbTower
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyFortnightlyEvery 3 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size103 MB4 MB
Age rating4+4+
DeveloperIsak KarlssonChristian Pedersen

In-app purchases

None

Zen Brick

No in-app purchases

1 purchases

OneThumbTower

One-time1
  • One-Thumb Tower Lifetime$3.99

Questions

Is Zen Brick free?
Zen Brick is free to download, with no in-app purchases.
Is OneThumbTower free?
OneThumbTower is free to download, with in-app purchases available.
Do Zen Brick or OneThumbTower have ads?
OneThumbTower shows ads; Zen Brick does not.
Which is updated more often, Zen Brick or OneThumbTower?
Zen Brick ships an update fortnightly, and OneThumbTower every 3 days. Most recently, Zen Brick was updated on October 24, 2026 and OneThumbTower on October 8, 2026.

Other comparisons