Comparison

Diary Calendar vs AI Voice Notes & Transcriber

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

Head to head
About

Diary Calendar

This calendar app supports the ICS standard for seamless integration with PC calendar software like Outlook and Lightning. It offers detailed date and monthly overviews, allows for time zone-specific appointments, and enables the creation of both one-off and recurring events.

Highlights
  • ICS standard compatibility
  • Date and monthly overviews
  • Time zone management
  • Recurring event creation
  • Searchable appointment list
  • External data storage
Features
Read full description

This app is suitable for calendars according to the ICS standard RFC 5545/5546,  which is used by most computer programs.  This is the prerequisite, so that you can also use your calendar from the PC  with Outlook, Lighting or other software. This calendar inherits the following functions: - Date Overview    All appointments are displayed time-dependent. The list can be searched. The list is kept on the iPhone and can be stored and loaded externally. Appointments can also be transferred from the iPhone - Monthly Overview    Monthly overview helps navigate through calendar dates quickly.  Appointments additional are listed separately.  An overview of appointments of the day couldt be called up on the screen. - Date    Appointments can include date and time or just the date.    These can be stored with or without time zone. So, for example    the date New Year should be used without time zone as the year    actually begins on earth at different times.    In contrast, a birthday with the time zone should be deposited, in    which the jubilarian lives. Thus, at the time of congratulation    nothing goes wrong. - Series date    One-off and serial appointments can be generated.    A recurring event is controlled by a rule by which the repetitive    appointments are generated. These rules fulfill the standard.    So you do not have to dive deeper into the rules, as most common rules could be created by key combination.

About

AI Voice Notes & Transcriber

Features
Read full description

Stop wasting hours transcribing meetings and lectures. Meet your new AI secretary that turns any audio into perfectly formatted summaries, emails, and action items in seconds. EFFORTLESS RECORDING & TRANSCRIPTION Tap to record or import any audio file. Our advanced AI transcribes your speech with high accuracy so you never miss a detail. 6 SMART AI WRITING STYLES Choose from Note, Summary, Todo, Email, Social, or Journal. Each style is expertly crafted for its purpose—whether it's actionable meeting notes or professional emails. AI RESTYLE: SWITCH FORMATS INSTANTLY Already created a note but need it as an email? Tap "Restyle" to instantly rewrite your text in a completely different style. Your original transcript is always preserved. NOT JUST FOR AUDIO (TEXT MODE) Don't have an audio recording? No problem. Paste or type any text and let our AI rewrite, summarize, or polish it in your chosen style. SEAMLESS EXPORT & SHARE • Share as plain text instantly • Export as beautifully formatted PDFs • Copy to clipboard with one tap ORGANIZE LIKE A PRO • Create custom folders with emoji icons • Add tags for lightning-fast filtering • Full-text search across your entire knowledge base • Batch operations for effortless bulk management BUILT FOR ULTIMATE PRODUCTIVITY • Clean, distraction-free interface • Integrated audio playback for every note • Edit and refine any note after creation • Works seamlessly across multiple languages User Agreement https://sites.google.com/view/clear-thought-terms Privacy Policy https://sites.google.com/view/clear-thought-privacy

Screenshots

Diary Calendar4 screens
AI Voice Notes & Transcriber4 screens

Verdict

The call

The clearest difference is price: AI Voice Notes & Transcriber at Free against Diary Calendar's $2.99. Diary Calendar's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.0). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

AI Voice Notes & Transcriber is free to download; Diary Calendar costs $2.99 up front. AI Voice Notes & Transcriber sells 3 in-app purchases, starting at $4.99 per 7 days. Diary Calendar asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and November 9, 2026 respectively.

Scorecard3 real differences · 5 level
Diary Calendar versus AI Voice Notes & Transcriber: the parameters behind the verdict, then further details
ParameterDiary CalendarAI Voice Notes & Transcriber
Price$2.99Free — better
Positive reviews33.3% of reviews—
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size14 MB27 MB
Age rating4+4+
DeveloperHans Joachim Gerhardt翠秀 吴

In-app purchases

None

Diary Calendar

No in-app purchases

3 purchases

AI Voice Notes & Transcriber

Subscriptions3
  • Weekly Premium$4.997 Days
  • Monthly Premium$9.991 Month
  • Yearly Premium3 Days trial$59.991 Year

Questions

Is Diary Calendar free?
Diary Calendar costs $2.99, with no in-app purchases.
Is AI Voice Notes & Transcriber free?
AI Voice Notes & Transcriber is free to download, with in-app purchases available.
Do Diary Calendar or AI Voice Notes & Transcriber have ads?
Neither Diary Calendar nor AI Voice Notes & Transcriber shows ads.
Which is updated more often, Diary Calendar or AI Voice Notes & Transcriber?
Diary Calendar ships an update every 3 months, and AI Voice Notes & Transcriber every 3 months. Most recently, Diary Calendar was updated on November 1, 2026 and AI Voice Notes & Transcriber on November 9, 2026.

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