Heart Star vs Hazmat Hijinks™
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Heart Star
Guide two characters through parallel worlds in this charming puzzle platformer. Swap between dimensions to solve intricate puzzles and overcome obstacles using teamwork. Enjoy retro graphics and a catchy soundtrack.
- Unique world swapping gameplay
- 60 levels of puzzles
- Retro pixel graphics
- Catchy retro soundtrack
- Teamwork mechanics
Read full descriptionHide full description
Pocket Gamer Silver Award "A bright and smart platformer with a lot going for it" – Pocket Gamer, 8/10 Heart Star is an adorable puzzle platformer where you guide two little friends through two parallel worlds. Swap between the worlds to solve unique puzzles. Overcome all obstacles with the power of teamwork! Game Features: - Unique world swapping gameplay! - 60 levels of mind bending puzzles! - Cutting edge retro pixel graphics! - Catchy and cute retro soundtrack! - Important information! - This game is funded by adverts, but is completely free to play with no timers or boosters to ruin your experience. There is an option to remove popup ads for a one time in-app purchase.
Hazmat Hijinks™
Embark on a toxic adventure to rescue a kidnapped fox. Navigate hazardous environments, collect multicolored hazmat suits, and battle enemies across 96 challenging levels. Discover secrets and enjoy over 40 hours of engaging gameplay.
- Multicolored hazmat suits
- Over 40 hours of gameplay
- 96 challenging levels
- Discover secrets and easter eggs
- Sequential or pick-and-choose level play
Read full descriptionHide full description
Hanford’s pet fox has been kidnapped by the Cleaners! In Hazmat Hijinks®, you’ll need multicolored hazmat suits for protection as you traverse chemical spills, walk through radiation, and battle the Cleaners in your quest to rescue Hanford’s furry friend. 1) Suit Up: Use different multicolored hazmat suits. 2) Long Play Time: Over 40 hours to complete all 96 levels. 3) Novelty: There’s always something new on each level! 4) Plenty of Surprises: Find dozens of secrets, easter eggs, and more. 5) Challenges & Help: Play each level sequentially or pick-and-choose to your heart’s content! National Spork was founded by Tod Powers to both advance the state of spork technology and promote the welfare of people across the world through the increased use of sporks. That project fizzled out rather quickly, so he switched to making elaborate, artsy video games — an endeavor that is known to be incredibly easy, not at all stressful, and a real quick way to make a buck.
Screenshots
Verdict
The clearest difference is price: Heart Star at Free against Hazmat Hijinks™'s $1.99. Heart Star also leads on ratings volume (745 vs 69). Hazmat Hijinks™'s advantage is in-app purchases (none vs 1) and ads (none vs shown). On review sentiment, 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
Heart Star is free to download; Hazmat Hijinks™ costs $1.99 up front. Heart Star sells 1 one-off in-app purchase. Hazmat Hijinks™ asks for nothing beyond the download.
Hazmat Hijinks™ holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Heart Star has 745 ratings behind it against 69, so its average is the more settled of the two. Written reviews point the same way: 85% of Heart Star's written reviews are positive against 88% of Hazmat Hijinks™'s.
Heart Star ships an update every 7 months, Hazmat Hijinks™ every 3 weeks. The most recent releases landed on September 23, 2026 and September 13, 2026 respectively.
| Parameter | Heart Star | Hazmat Hijinks™ |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.6 (745 ratings) | 4.8 (69 ratings) — better |
| Positive reviews | 84.6% of reviews | 87.5% of reviews — better |
| Number of ratings | 745 — better | 69 |
| Update frequency | Every 7 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 72 MB |
| Age rating | 9+ | 9+ |
| Developer | Jussi Simpanen | National Spork LLC |
Customer experience
Heart Star
Hazmat Hijinks™
Bugs and requests
Heart Star
Reported bugs
2 issues- Teleportation issues causing unexpected deaths
- Freezing or crashing when interacting with ads
Requested features
4 requests- More levels and increased difficulty
- Customization options for characters
- Multiplayer or co-op mode
- Ability to turn off music and sound effects
Hazmat Hijinks™
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Heart Star
- Remove Ads$1.99
Hazmat Hijinks™
No in-app purchases
Questions
Is Heart Star free?
Is Hazmat Hijinks™ free?
Which has better reviews, Heart Star or Hazmat Hijinks™?
Do Heart Star or Hazmat Hijinks™ have ads?
Which is updated more often, Heart Star or Hazmat Hijinks™?
Other comparisons















