Sidebar | Fast Notes vs SludgeAI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sidebar | Fast Notes
Quickly capture thoughts and ideas without the need for organization. Entries are timestamped logs that can be tagged as to-dos or personal wins/losses. Syncs across devices with custom themes and a stealth mode.
- Instant note capture
- Timestamped entries
- To-do list integration
- Personal scoreboard
- Cross-device sync
- Custom themes
- Stealth mode
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Open. Type. Done. Sidebar opens fast, keyboard ready for your ideas. No folders, no document names, no organizing. Just get the idea down before it's gone. Entries are timestamped logs, not documents. But some logs do more. Tag an entry as a todo and it joins your lightweight task list. Tag it as a personal win or loss and it goes to your scoreboard, ranked by topic. What's inside: Cross-device sync across iOS and macOS, custom themes, and stealth mode for sensitive notes.
SludgeAI
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Access your AI-generated short-form videos anywhere. SludgeAI is the official companion app for sludge.ai — the AI-powered platform trusted by 50,000+ creators to create viral short form content. WHAT YOU CAN DO • Browse and organize all your processed videos • Watch your AI-edited clips instantly • Save videos directly to your camera roll • Share content to any social platform with one tap • Manage projects and organize your content library • Access your entire video library on the go BUILT FOR CREATORS Whether you're a YouTuber creating Shorts, a podcaster repurposing clips, or a social media manager handling multiple accounts — access your content library from anywhere and never miss a posting opportunity. TERMS: https://sludge.ai/terms-of-service PRIVACY POLICY: https://sludge.ai/privacy-policy
Screenshots
Verdict
The clearest difference is in-app purchases: Sidebar | Fast Notes at none against SludgeAI's 4. SludgeAI's advantage is update cadence (every 9 days vs every 3 months). On price, ads, 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
Both are free to download. SludgeAI sells 4 in-app purchases, starting at $29.00 per month. Sidebar | Fast Notes asks for nothing beyond the download.
Sidebar | Fast Notes ships an update every 3 months, SludgeAI every 9 days. The most recent releases landed on September 20, 2026 and September 19, 2026 respectively.
| Parameter | Sidebar | Fast Notes | SludgeAI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 2 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Woods | FANSPY LLC |
In-app purchases
Sidebar | Fast Notes
No in-app purchases
SludgeAI
- Sludge AI Basic Monthly$29.001 Month
- Sludge AI Pro Monthly$49.001 Month
- Sludge AI Basic Annual$239.991 Year
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- Sludge AI Pro Annual$409.001 Year
