T4Two vs Gear Jack Black Hole
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
T4Two
Engage in a straightforward tennis-style game designed for two players. Enjoy a simple and direct competitive experience.
- Two-player gameplay
- Tennis-like mechanics
- Simple interface
- Casual gaming
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T4Two is a simple tennis-like game for two players.
Gear Jack Black Hole
Embark on an endless adventure through time and space, running to escape a black hole. Dodge lethal alien enemies and mechanical traps while collecting power-ups and customizing your character. Compete with friends on leaderboards in this visually stunning runner.
- Addicting endless runner gameplay
- Beautiful and unique visual style
- Multiple worlds to explore
- Power-ups and mini-games
- Alien enemy avoidance
- Character talents and customizations
- Missions, leaderboards, and achievements
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Gear Jack is back, in an all new endless adventure with beautifully stylized graphics! Jack is trapped inside the Black Hole, and he's running to save his life. He will have to travel through time and space to take on lethal alien enemies, crazy traps, and more! To make things worse, his ship, the W.Hale was absorbed by the Black Hole too. and now all kinds of mechanical traps are floating around in the Black Hole! Features: Addicting Endless Runner. Beautiful And Unique Visual Style. 6 Worlds (Japan, Iceland, Jungle and Desert, Volcan and Engine Room) and more coming! Power Ups and Mini Games. Sneak Around to avoid waking up the alien monsters! Talents and Customizations. Tons of Missions! Leaderboards and Achievements. Social! Share your gameplay replays and your results!
Screenshots
Verdict
The clearest difference is rating: Gear Jack Black Hole at 4.4 against T4Two's 2.5. Gear Jack Black Hole also leads on ads (none vs shown) and update cadence (monthly vs every 10 months). T4Two's advantage is in-app purchases (none vs 7) and ratings volume (9.4K vs 113). 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. Gear Jack Black Hole sells 7 one-off in-app purchases. T4Two asks for nothing beyond the download.
Gear Jack Black Hole holds the better App Store score, 4.4 against 2.5. That said, the two scores are not equally well evidenced: T4Two has 9.4K ratings behind it against 113, so its average is the more settled of the two. Written reviews point the same way: 53% of T4Two's written reviews are positive against 68% of Gear Jack Black Hole's.
T4Two ships an update every 10 months, Gear Jack Black Hole monthly. The most recent releases landed on November 12, 2026 and November 1, 2026 respectively.
| Parameter | T4Two | Gear Jack Black Hole |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (9.4K ratings) | 4.4 (113 ratings) — better |
| Positive reviews | 52.7% of reviews | 67.6% of reviews — better |
| Number of ratings | 9.4K — better | 113 |
| Update frequency | Every 10 months | Monthly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 5.1 — better |
| Further details — not scored | ||
| Size | 8 MB | 107 MB |
| Age rating | 4+ | 4+ |
| Developer | Masayuki Akamatsu | Crescent Moon Games LLC |
Customer experience
T4Two
Gear Jack Black Hole
Bugs and requests
T4Two
Reported bugs
2 issues- Accelerometer causes issues with gameplay
- Difficulty controlling the ball
Requested features
3 requests- Option to turn off accelerometer
- Add a 1-player mode against AI
- Improve visuals and controls
Gear Jack Black Hole
Not enough reviews yet to summarise bugs or requests.
In-app purchases
T4Two
No in-app purchases
Gear Jack Black Hole
- 7500 Gears$0.99
- 10 Stars$1.99
- 25 Stars!$3.99
Show 4 moreShow fewer
- 45.000 Gears!$4.99
- 100.000 Gears!$9.99
- 100 Stars!$13.99
- 250.000 Gears!$19.99
Questions
Is T4Two free?
Is Gear Jack Black Hole free?
Which has better reviews, T4Two or Gear Jack Black Hole?
Do T4Two or Gear Jack Black Hole have ads?
Which is updated more often, T4Two or Gear Jack Black Hole?
Other comparisons
