Comparison

Reeft Abcus vs Thietk Ousep

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

Head to head

About

Reeft Abcus

Features

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Reeft Abcus is an ocean-themed match-three puzzle game. Adjacent Marine organisms were exchanged on a 7×7 board, and three or more Marine organisms were removed consecutively and scored. Each successful race resets a countdown; Interlocking combos and energy boosts such as bombs and cross clearing help you chase high scores. Explore the Ocean Almanac, climb local charts, and enjoy a smooth iPhone game.

About

Thietk Ousep

Features

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Thietk Ousep is a cute, hand-drawn whack-a-mole arcade game. Within a 60-second countdown, tap eight animals popping from nine holes to score points—+10 for hits, -5 for misses. It features nine progressively harder levels to unlock, plus rules, local best scores, and a local leaderboard. Play on iPhone and iPad to test your reflexes and accuracy.

Screenshots

Reeft Abcus4 screens

Thietk Ousep4 screens

Verdict

The call

Reeft Abcus and Thietk Ousep are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Reeft Abcus ships an update fortnightly, Thietk Ousep every 2 weeks. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

ScorecardNo meaningful differences

Reeft Abcus versus Thietk Ousep: the parameters behind the verdict, then further details
Parameter	Reeft Abcus	Thietk Ousep
Price	Free	Free
Update frequency	Fortnightly	Every 2 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	14.0 — better	15.0
Further details — not scored
Size	50 MB	58 MB
Age rating	4+	4+
Developer	Hoi Le Thang	Tien Thong Trinh

In-app purchases

None

Reeft Abcus

No in-app purchases

None

Thietk Ousep

No in-app purchases

Questions

Is Reeft Abcus free?

Reeft Abcus is free to download, with no in-app purchases.

Is Thietk Ousep free?

Thietk Ousep is free to download, with no in-app purchases.

Do Reeft Abcus or Thietk Ousep have ads?

Neither Reeft Abcus nor Thietk Ousep shows ads.

Which is updated more often, Reeft Abcus or Thietk Ousep?

Reeft Abcus ships an update fortnightly, and Thietk Ousep every 2 weeks. Most recently, Reeft Abcus was updated on October 21, 2026 and Thietk Ousep on October 19, 2026.