iDoctor vs TriZen HD Gold
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
iDoctor
A classic puzzle game where players eliminate viruses by matching colored pills and viruses. Create lines of four or more to clear them, but be strategic when viruses appear in groups. Offers 20 challenging levels with intuitive controls.
- Virus elimination gameplay
- Color matching mechanics
- Row and column clearing
- Strategic pill placement
- 20 challenging levels
- Intuitive arrow and rotation controls
Read full descriptionHide full description
This application is a classic puzzle game. Your task is try to eliminate the virus by creating rows or columns using a combination of pills and virus of the same color. A line group of 4 or more contains or not contains the virus will disappear. However, if there are 4 virus in a row or column, you need have at least one pill to kill those virus. Currently, there are 20 levels in the game. When you pass the level, there is 3 seconds delay for going to the next game. Currently, it is designed to be classic. We use the left and right, down arrow for motion at the left side. At your right side, there is a rotation button.
TriZen HD Gold
Engage in a relaxing and challenging puzzle game where you fit geometric pieces into a shaded area. With over 500 puzzles, this app offers a long-lasting mental escape. It's a free, ad-supported version of a paid game, including all its puzzles.
- Over 500 puzzles
- Tangram-style gameplay
- Piece fitting challenges
- Puzzle completion recognition
- Free access to all puzzles
Read full descriptionHide full description
Find your Zen, with this peaceful, yet challenging, puzzle game. With over 500 puzzles, TriZen HD will ease your mind for a very long time, for FREE! Choose a puzzle to solve, and try to fit all the game pieces within the shaded puzzle area without overlapping. TriZen HD will recognize when the puzzle is finished. TriZen HD Gold is the free, ad supported, version of TriZen HD. It includes all the puzzles from the paid version of the game, for FREE!
Screenshots
Verdict
The clearest difference is review sentiment: TriZen HD Gold at 99% against iDoctor's 22%. TriZen HD Gold also leads on update cadence (every 2 months vs every 105 months) and ratings volume (84 vs 1). iDoctor's advantage is rating (5.0 vs 4.6). On price, ads, in-app purchases and monetization model 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. iDoctor sells 1 one-off in-app purchase and TriZen HD Gold sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
iDoctor holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: TriZen HD Gold has 84 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 22% of iDoctor's written reviews are positive against 99% of TriZen HD Gold's, so the app with the better star average is not the one people write more warmly about.
iDoctor ships an update every 105 months, TriZen HD Gold every 2 months. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.
| Parameter | iDoctor | TriZen HD Gold |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.6 (84 ratings) |
| Positive reviews | 22.2% of reviews | 98.9% of reviews — better |
| Number of ratings | 1 | 84 — better |
| Update frequency | Every 105 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPad |
| Requires iOS | 17.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Alteru Inc. | Little White Bear Studios, LLC |
Customer experience
iDoctor
TriZen HD Gold
Bugs and requests
iDoctor
Not enough reviews yet to summarise bugs or requests.
TriZen HD Gold
Reported bugs
1 issue- Inappropriate adult content in advertisements
Requested features
3 requests- Sequel or extension (Tan Zen #2)
- More varied music tracks and tones
- Easier piece rotation mechanism
In-app purchases
iDoctor
- iDoctor Ads Free$0.99
TriZen HD Gold
- 100 Hints$3.99
- 1,000 Hints$9.99
- Unlimited Hints$19.99
Questions
Is iDoctor free?
Is TriZen HD Gold free?
Which has better reviews, iDoctor or TriZen HD Gold?
Do iDoctor or TriZen HD Gold have ads?
Which is updated more often, iDoctor or TriZen HD Gold?
Other comparisons
