Dumpster Note vs OpenSleep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dumpster Note
This app provides a private space for journaling and emotional expression. It offers prompts, mood tracking, and AI insights to help users understand their thoughts and feelings. Users can also send anonymous letters to vent.
- Private journaling
- Playful prompts
- Mood tracking with visuals
- AI-powered insights
- Anonymous letter sending
- Trend spotting over time
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Feeling overwhelmed? Overthinking everything? Dumpster Note is your judgment-free journal that turns messy thoughts into instant clarity — with playful prompts and mood tracking. Send letters anonymously to get it off your chest. Record and talk it out. Capture your thoughts, feelings, and memories with Dumpster Note. Go Deeper→ helps you explore your thoughts without judgement. Capture your mood with pics → Log emotions visually for context you’ll love looking back on. AI insights → See key themes, emotions, and patterns after every entry. Spot trends over time → Mood charts and themes reveal what’s really going on. Private by design → All your entries and photos are stored directly to your phone. Cozy, vibe → A journaling experience that feels fun, not clinical. Whether you’re venting, reflecting, or just capturing small wins, Dumpster Note makes journaling something you’ll actually want to do every day. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
OpenSleep
This app offers a privacy-focused, offline sleep tracker and AI coach. It analyzes your sleep patterns locally on your device, synchronizes with Apple Health, and provides detailed insights without sending any data to servers.
- Offline sleep tracking
- Local AI sleep coach
- Apple Health synchronization
- Sleep cycle and stage analysis
- Privacy-first, serverless design
- Detailed sleep history
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OpenSleep tracks your sleep stages without a watch or ring, and explains them with an AI sleep coach that runs entirely on your iPhone. TRACK SLEEP WITHOUT A WEARABLE Choose how your phone listens to the night: • Sonar (contactless): leave your iPhone on the nightstand. OpenSleep uses ambient sound levels to pick up sleep cues. Raw audio is never recorded or stored. • Mattress mode: place your iPhone flat on the mattress next to your pillow and let the motion sensor follow your movement. SEE EVERY STAGE OF YOUR NIGHT • Awake, REM, light and deep sleep, shown on a stage ring and a full-night sleep pattern chart • Bedtime, wake-up time and total sleep for every session • History with day, week, month and year views to spot trends AN AI SLEEP COACH THAT STAYS ON YOUR PHONE Ask about your sleep, your routine or why you wake up tired. The coach is a large language model that runs on your device, so your questions and answers are never sent to a server. Download the model once, then chat even with no connection. WORKS WITH APPLE HEALTH OpenSleep writes your sleep sessions and stages to Apple Health and can show sleep already recorded there. PRIVATE BY DESIGN • No account and no sign-up • Sleep analysis happens on your iPhone • Open source: anyone can read the code Available in English, Spanish, Portuguese, German, French and Italian. Sleep tracking is free. The AI Sleep Coach is a one-time purchase with no subscription. OpenSleep is a wellness tool, not a medical device. Talk to a doctor about any sleep or health concerns.
Screenshots
Verdict
The clearest difference is ratings volume: Dumpster Note at 9 against OpenSleep's 1. Dumpster Note also leads on iOS requirement (17.0 vs 26.0). On price, rating, review sentiment and update cadence 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. Dumpster Note sells 3 in-app purchases, starting at $2.99 per 7 days and OpenSleep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Dumpster Note against 5.0 for OpenSleep. That said, the two scores are not equally well evidenced: Dumpster Note has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Dumpster Note ships an update every 3 weeks, OpenSleep every 11 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Dumpster Note | OpenSleep |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (9 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 9 — better | 1 |
| Update frequency | Every 3 weeks | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 67 MB | 73 MB |
| Age rating | 17+ | 12+ |
| Developer | Caleb Mathew | Yuan Qian |
Customer experience
Dumpster Note
OpenSleep
In-app purchases
Dumpster Note
- Dumpster Note Weekly7 Days trial$2.997 Days
- Dumpster Note Monthly7 Days trial$7.991 Month
- Dumpster Note Yearly7 Days trial$39.991 Year
OpenSleep
- OpenSleep Lifetime Premium$2.99









