Ever Collar vs Sitter Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ever Collar
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Ever Collar is a BDSM relationship management app for your unique dynamic: build good behaviors, prevent bad behaviors, encourage focus, and engage in consensual location sharing. With consensual and privacy-first features, any dominant and submissive pair can safely use Ever Collar to start a new dynamic or more deeply build an existing one. Dominants can define behaviors they want their submissives to build -- or just as importantly, behaviors that should be avoided -- and provide rewards or punishments for their completion. With a focus on privacy and consensual usage, Ever Collar is uniquely designed for D/s and BDSM relationships that require discretion and security. Confidently explore your relationship knowing your data is encrypted and that BDSM-focused privacy and consent features are built in. Enable Ever Collar’s privacy features to explore your fetishes and kinks with peace of mind. Features: ・Assign recurring tasks via behaviors ・Create punishments and rewards ・Allow submissives to buy rewards or complete punishments ・Encrypted chat with photo and audio ・One-time or scheduled Focus sessions to encourage concentration ・Enable consensual location sharing with schedulable geofences; submissive can disable this at any time ・Link with multiple partners, whether dominant, submissive, or switch ・View stats about behavior completion ・Receive weekly AI summaries of submissive strengths, weaknesses, and tips for encouragement; dominants and submissives can disable this at any time ・Hide app contents when in background or in app switcher ・Create fully custom themes Terms & Conditions: https://evercollar.com/terms Privacy Policy: https://evercollar.com/privacy FAQ: https://evercollar.com/faq
Sitter Notes
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Oppaspas makes the handover between parents and babysitters calm, clear and private. For parents • Save children, routines, house rules, emergency contacts, doctor details, Wi-Fi, doors and pets in one reusable family profile. • Create a compact briefing for each evening and choose exactly what to share. • Share offline using an animated QR code, an encrypted Oppaspas file or a local iPhone connection. • Preview, share and print a readable PDF in A4 or US Letter format, based on your region. For babysitters • Receive and use briefings for free, without an account or subscription. • See important times, instructions and emergency contacts at a glance. • Check off tasks and keep private notes locally. • Choose which events to include when sharing an evening summary. • Delete an evening or family when you no longer need the information. Private by design Oppaspas has no account, cloud backend, analytics or advertising. Information stays locally on your iPhone. Transferred briefings are encrypted and lock after the evening unless you choose to keep them. PDFs are readable and are not encrypted. Available in English and Dutch. The interface follows your preferred app language. Parents' own instructions remain exactly as written and are not automatically translated. The babysitter features are free. Creating and sharing parent briefings requires a one-time in-app purchase. No subscription.
Screenshots
Verdict
The clearest difference is update cadence: Ever Collar at every 4 days against Sitter Notes's every 2 months. Ever Collar also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.0). 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. Ever Collar sells 4 in-app purchases, starting at $8.99 per month and Sitter Notes sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Ever Collar ships an update every 4 days, Sitter Notes every 2 months. Both last shipped on October 31, 2026.
| Parameter | Ever Collar | Sitter Notes |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 145 MB | 5 MB |
| Age rating | 17+ | 4+ |
| Developer | Iconiplex | Andre de Groot |
In-app purchases
Ever Collar
- Pro (Monthly)2 variants$8.991 Month
- Premiere (Monthly)2 variants$15.991 Month
- Pro (Yearly)2 variants$64.991 Year
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- Premiere (Yearly)2 variants$114.991 Year
Sitter Notes
- Oudermodus ontgrendelen$2.99









