HERO8 vs Questellar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HERO8
This app encourages environmental action by allowing users to certify their recycling and zero-waste activities with photos. Earn points, level up, and receive recognition for your efforts to protect the planet.
- Certify recycling of various items
- Record and share zero-waste activities
- Participate in environmental challenges
- Earn points and level up for activities
- Receive hero certificates
- Access correct recycling guides
- Team up with other users
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The world's first global hero certification platform. Splendid treatment only available on HERO8!! Take a photo and show your heroism proudly! You are the only one who can solve the waste problem, not with any technology or equipment. You are the Super Hero of our planet! ■ Hero activity against environmental crisis Heroes! Simply record and share your environmental activities with one photo - Please certify recyclable products that have been recycled correctly and add to the resource circulation. Certify all items, including plastic, PET, cans, paper packs, sterilization packs, and sterilization packs. - Please protect the environment by doing zero-waist activities. Please certify various environmental protection activities such as multi-use containers and tumblers. - Please participate in various challenges. Please participate and certify various environmental activities such as flogging and courageous campaigns. ■ Hero KIT for Trendy recycling Activities Now environmental activities are new hot trend! We'll support you all! - Stylish Hero Level Image Please score points through hero activities and become a high-level hero! - Hero Certificate for Earth protecting Heroes Your heroic moment that no one recognized! We'll treat you accordingly! - Correct Recycle Guide Recycle, confusing and difficult! Learn one by one from HERO8 and grow into a great hero! - Differentiated compensation according to level (to be updated later) Certify more activities and increase your level to get the best benefits! ■ Hero Certificate for Earth Guarding Heroes. We will create an environment where everyone recognizes that eco-friendly activities are not lonely. - Hero Team Play Against Environment Problem Team up and be the most active hero in the team! - Mutual Superhero Evaluation Please create a wonderful environment where you evaluate other hero's proof photos and praise each other for supporting each other! - Hall of Fame, footsteps of heroes. Learn and level up by looking at High-level heroes' records! --- If you have any questions, please contact us below. support@hero8.app
Questellar
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Questellar turns building habits into a game. Make your tasks into quests, and earn Stardust each time you finish one. Every day you live lights up as a star in your night sky, and that star grows on its own as much as you build up. [ How it works ] - Create daily and weekly quests and complete them. - Recurring quests come back each cycle; goal quests fill progress toward a target. - Attach today's tasks under a bigger goal so everything connects in one line. - Break a big quest into a checklist to work through it. - Keep your list tidy with favorites and archive. [ Your growing star ] Your star grows with the Stardust you gather, and when your rank rises you awaken it yourself to evolve the star. From an ember to a star, a supernova, a galaxy, and beyond to transcendence. Tap the star for a reaction worthy of your current rank. [ Records ] On the Records tab, the days you live light up as stars. The more you do in a day, the brighter it shines. Look back on your days at a glance. [ The promise ] Stardust can only be earned by real completion. It can't be bought, and nothing here sells an advantage. Your star is built only from the days you have lived. No account, no login. Everything is stored safely on your device. Korean and English supported.
Screenshots
Verdict
The clearest difference is update cadence: Questellar at every 4 days against HERO8's every 6 weeks. HERO8's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
HERO8 ships an update every 6 weeks, Questellar every 4 days. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.
| Parameter | HERO8 | Questellar |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 67 MB | 56 MB |
| Age rating | 4+ | 4+ |
| Developer | Oyster able co., ltd. | JAEYEOP KIM |
In-app purchases
HERO8
No in-app purchases
Questellar
No in-app purchases









