Airsol vs Catch!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Airsol
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The Airsol heat recovery ventilation unit uses standard universal sensors to instantly detect and discharge indoor pollutants. It filters, controls, and recovers heat from outdoor air to reduce heating and cooling energy costs while maintaining a high-purity indoor environment that supports healthier living. During infectious disease events, negative/positive pressure and combined ventilation modes can be activated. The system includes smoke detection for indoor fires and an automatic filter-cleaning function. The heat exchanger is semi-permanent and requires no replacement. Operation modes include Auto Clean Ventilation, Manual, Air Purification, Outdoor Cooling, Dehumidified Ventilation, Forced Exhaust, Negative Pressure, Positive Pressure, and combined Negative/Positive Pressure Ventilation. Available modes vary based on installation environment and options. All Airsol products come equipped with HEPA13 or higher filters, providing 99.96%–100% dust removal efficiency. Noise level: Premium low-noise performance at 34 dB (small/medium units) to 46 dB (large units), enabling near-silent 24/7/365 operation.
Catch!
Capture your favorite things as stickers with this app. Take photos or select from your album, and it automatically cuts out the subject. Organize your creations into custom folders and view your collection interactively.
- Create stickers from photos
- Automatic background removal
- Organize stickers into folders
- Interactive collection viewing
- On-device processing
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Catch!는 좋아하는 모든 것을 스티커로 모으는 수집 앱이에요. #찍으면 바로 스티커 - 사진을 찍거나 앨범에서 고르면, 피사체만 깔끔하게 오려내 스티커가 됩니다. 배경 제거(누끼)는 전부 기기 안에서 처리돼요. #나만의 채집통 - 완성된 스티커는 항아리 속으로 톡 떨어져요. 흔들고 만지며 내 수집을 구경하세요. #폴더로 정리 - 좋아하는 것끼리 폴더로 모아 깔끔하게. 지금 좋아하는 걸 Catch하세요! 이용약관(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 개인정보처리방침: https://tntlabs.kr/catch/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Airsol at none against Catch!'s 3. Airsol also leads on iOS requirement (15.1 vs 17.0). Catch!'s advantage is update cadence (every 6 days vs every 3 weeks). 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. Catch! sells 3 in-app purchases, starting at $0.99 per month. Airsol asks for nothing beyond the download.
Airsol ships an update every 3 weeks, Catch! every 6 days. The most recent releases landed on August 3, 2026 and September 19, 2026 respectively.
| Parameter | Airsol | Catch! |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Positive reviews | — | 64.3% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 31 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | 에어솔 주식회사 | Jahyeon Ko |
In-app purchases
Airsol
No in-app purchases
Catch!
- Catch Pro 월 구독$0.991 Month
- Catch Pro 연 구독$4.991 Year
- Catch Pro 평생 결제$7.99





