Islands in the Stream vs Electroll
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Islands in the Stream
A logic puzzle game where you paint grids blue or white following specific island and stream rules. Offers over 500 unique puzzles across three sizes and time trial modes.
- Over 500 unique puzzles
- 3 different grid sizes
- 3 Time Trial modes
- Record best completion times
- Hint system for uncompleted islands
- Leaderboards for Time Trial
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Are you looking for a new challenge? Are you a Sudoku fan? Try Islands in the Stream. This game is a logic puzzle with interesting rules. The challenge is to paint each grid blue or white, subject to the following rules: 1. Each number indicated the number of grids in that island. 2. Each island must contain exactly one numbered grid. 3. There must be only one stream, which is not allowed to contain "pools", i.e. 2x2 area of black cells. ***** Game Features ***** # Content - More than 500 unique puzzles - 3 different sizes - 3 Time Trial modes # Features - Record best completion time for each level - Highlight number if the number of grids matches the number of label - Highlight 2x2 grids - "Hint" shows uncompleted islands # Challenge - Leaderboards for Time Trial - Try to complete as many puzzles as possible in fixed time
Electroll
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◆遊び方 ①タップでブロックを壊して、電気ボールを転がしましょう。 ②電気の力でさまざまなギミックが動きます。 ③すべての電球に明かりをともせばステージクリア。 簡単なようで難しい。物理電気パズル。 ▼こんな人におすすめ ・物理パズルが好き ・頭を使うゲームが好き ・これが解けたら天才 ・パズルを毎日プレイしたい ・ステージ制のパズルに挑戦したい ・ひまつぶしがしたい ・お手軽で簡単なカジュアルゲーム ・無料のひまつぶしゲーム ・シンプルで美しいグラフィック
Screenshots
Verdict
The clearest difference is in-app purchases: Electroll at none against Islands in the Stream's 7. Electroll also leads on update cadence (weekly vs every 5 months) and iOS requirement (12.0 vs 15.0). On price, ads 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. Islands in the Stream sells 7 one-off in-app purchases. Electroll asks for nothing beyond the download.
Islands in the Stream ships an update every 5 months, Electroll weekly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | Islands in the Stream | Electroll |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 5 months | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 133 MB |
| Age rating | 4+ | 4+ |
| Developer | Stanley Lam | CorocoroGames |
In-app purchases
Islands in the Stream
- 5 Hints$0.99
- Regular Pack 1 (5x5 to 10x10)$1.99
- Regular Pack 2 (5x5 to 10x10)$1.99
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- 7x7 Mania Pack$1.99
- 10x10 Mania Pack$1.99
- Unlock All Packs$2.99
- 20 Hints$2.99
Electroll
No in-app purchases
