Comparison

Mental Note ๛ vs ProofLog

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mental Note ๛

This app offers a versatile digital notepad experience, allowing users to combine text, photos, voice recordings, and drawings on a single page. Capture ideas in any format, organize them with tags, and share them easily.

Highlights
  • Combine text, photos, audio, and drawings
  • Finger drawing with multiple colors
  • Add photos from album or camera
  • Record audio while editing notes
  • Organize notes with tags
  • Password protect private notes
  • Export notes in various formats (PDF, text)
Read full description

"...a true notepad experience that may help you make a clean break from the pencil-and-paper era." -New York Times. Users describe Mental Note as "the only notepad app... that's actually better than, and as simple as, a pen and paper." It's "the future of note taking", and "a big sketchpad... [to] free associate and put stuff down in any format". Turn your iPhone into a digital notepad. Combine photographs, voice recordings, drawings and text - all on the same page, in any order you choose. An idea... a flash - a moment of genius. When a thought hits, and you have to remember it, why limit how you record it? The more context and sensory details you can capture, the clearer the idea can be put down. Use photographs, audio, sketching and text together on the same page... a digital page that can be shared with anyone. Mental Note allows you to capture ideas as they happen: use photographs, dictate, add text, sketch on anything. Ideas clarified. Creativity captured. FEATURES - Draw with your finger using multiple colours and widths on top of photographs, text, or anywhere else on the page. Zoom in to sketch fine details. - Take a photo or choose one from your album and add it to the page. - Add audio to the page by recording with your microphone. Continue to edit your note while recording. - Organize your notes using tags. - Password protect your private notes and flag your important ones. - Attach Calendar events to your notes. - Undo, redo anything in the note by shaking the device. - Delete note sections using the toolbar button or by swiping any note section. - Move a note section by swiping and then dragging it to its new location. - Length of a note is limited only by device memory. - Export in a variety of formats including PDF, text, Mental Note format, and more. Send using email, iCloud, Dropbox, and more. * Send a note in Mental Note format so the note may be imported into another person's Mental Note app. * Using email, export a complete note directly from Mental Note as either a PDF document or a picture (each audio recording is attached to the email as a separate file). You can also email just the text from your note. - Export your notes and backups to your iCloud and/or Dropbox account. - Share a note with your friends using most installed apps. - Map the location a note was created at (if location services are enabled). - Change the size and font of the text in your notes. - Change the color and background of your notes. - Numerous other configuration options. THIS VERSION IS OPTIMIZED FOR iPhone. FOR iPad, PLEASE SEE Mental Note for iPad. Read more: www.zymbiotic.com X @zymbiotic facebook.com/zymbiotic

About

ProofLog

Navigate difficult co-parenting conversations with a private communication coach. This tool helps you craft calm responses, manage stressful situations, and organize important records. It's designed to empower you with clarity and confidence, not for shared communication.

Highlights
  • Craft calm and clear responses
  • AI-assisted situation analysis
  • Guidance on when to reply or wait
  • Set firm boundaries respectfully
  • Respond to manipulation confidently
  • Organized interaction timeline
  • Secure documentation storage
Features
Read full description

Start building a clear private record of what happened. ProofLog helps you record what happened, keep the supporting proof with it, and build a clear private record you can return to or export when needed. Log incidents, exchanges, schedule changes, school issues, medical concerns, messages, and other important events. Add screenshots, photos, PDFs, and documents directly to the entries they support — or save files first and connect them later. Your Story and Files stay together in one organized Record, with timestamps and record history that make it easier to see what happened, what was added, and when. When communication gets difficult, ProofLog also includes focused Guidance tools to help you slow down, think clearly, and decide what to say next. WHAT YOU CAN DO • Log what happened Record incidents, exchanges, schedule changes, school issues, medical concerns, messages, and other important events while the details are fresh. • Add proof Save screenshots, photos, PDFs, and documents. Link them to the entry they support or keep them available to connect later. • Build your Record View your chronological Story and supporting Files together in one private place. • Keep a clear history See when records were created, when supporting files were added, and when entries were changed. • Export your record Create an organized PDF of your entries and supporting evidence when you need to share or review it. • Reply Calmly Turn emotionally charged messages into clearer, more grounded responses. • Set a Boundary Draft firm, respectful wording without overexplaining or escalating conflict. • Reply or Wait Think through whether a message needs a response now, later, or at all. • Talk It Out Work through a difficult situation before deciding what to say or do next. PRIVATE BY DESIGN ProofLog is built as your private record. It is not a shared messaging platform, shared calendar, or portal that another person joins. Your records remain private unless you choose to export or share them. ProofLog can be especially useful for high-conflict co-parenting, custody documentation, difficult communication, high-conflict divorce, and other situations where keeping a clear record matters. ProofLog is not legal advice, therapy, or crisis support. ## SUBSCRIPTION Start with a 3-day free trial, then continue with **$8.99/month** or **$69.99/year**. Cancel anytime in your Apple ID Settings. **Log it. Prove it. Export it.** Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://wave-record-51d.notion.site/Niki-Labs-Privacy-Policy-29273f8f6ee9800895ced00c49046501 Support: https://wave-record-51d.notion.site/Niki-Labs-Support-29273f8f6ee98080b989d2f628b9c8c6

Screenshots

Mental Note ๛4 screens
ProofLog4 screens

Verdict

The call

The clearest difference is price: ProofLog at Free against Mental Note ๛'s $4.99. ProofLog also leads on rating (5.0 vs 4.0) and review sentiment (100% vs 63%). Mental Note ๛'s advantage is ratings volume (15 vs 3) and iOS requirement (13.0 vs 15.1). On ads, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

ProofLog is free to download; Mental Note ๛ costs $4.99 up front. Mental Note ๛ sells 3 one-off in-app purchases and ProofLog sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ProofLog holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Mental Note ๛ has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 63% of Mental Note ๛'s written reviews are positive against 100% of ProofLog's.

UpkeepUpdate frequency

Mental Note ๛ ships an update every 5 months, ProofLog weekly. The most recent releases landed on October 3, 2026 and September 16, 2026 respectively.

Scorecard6 real differences · 4 level
Mental Note ๛ versus ProofLog: the parameters behind the verdict, then further details
ParameterMental Note ๛ProofLog
Price$4.99Free — better
Rating4.0 (15 ratings)5.0 (3 ratings) — better
Positive reviews63.2% of reviews100.0% of reviews — better
Number of ratings15 — better3
Update frequencyEvery 5 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.1
Further details — not scored
Size10 MB36 MB
Age rating4+4+
DeveloperZymbiotic TechnologiesNicole Castelle

Customer experience

Mental Note ๛

All ratings15 ratings
Positive73.3%
Neutral6.7%
Negative20.0%
Written reviews201 reviews
Positive63.2%
Neutral17.9%
Negative18.9%

ProofLog

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Mental Note ๛

Reported bugs

4 issues
  • Notes sometimes disappear or get deleted unexpectedly
  • Audio recording feature not working properly
  • Keyboard issues causing loss of typed text
  • Location services not accurately detecting user's location

Requested features

6 requests
  • Add iCloud or Dropbox sync
  • Implement copy/paste and text formatting options
  • Improve drawing tools with more customization
  • Introduce a task/to-do list feature
  • Add video recording capability
Show 1 more
  • Provide more font and color options

ProofLog

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Mental Note ๛

One-time3
  • Paper Customization feature$2.99
  • Straight Line Drawing feature$3.99
  • Dark Mode Override feature$3.99
3 purchases

ProofLog

Subscriptions3
  • CoParentSOS Pro3 Days trial$8.991 Month
  • CoParentSOS Monthly (No Trial)$8.991 Month
  • CoParentSOS Annual3 Days trial$69.991 Year

Questions

Is Mental Note ๛ free?
Mental Note ๛ costs $4.99, and also offers in-app purchases.
Is ProofLog free?
ProofLog is free to download, with in-app purchases available.
Which has better reviews, Mental Note ๛ or ProofLog?
ProofLog is rated higher. Mental Note ๛ averages 4.0 out of 5 from 15 ratings, while ProofLog averages 5.0 from 3 ratings.
Do Mental Note ๛ or ProofLog have ads?
Neither Mental Note ๛ nor ProofLog shows ads.
Which is updated more often, Mental Note ๛ or ProofLog?
Mental Note ๛ ships an update every 5 months, and ProofLog weekly. Most recently, Mental Note ๛ was updated on October 3, 2026 and ProofLog on September 16, 2026.

Other comparisons