Comparison

Sidebar | Fast Notes vs PST Viewer for Outlook

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

Head to head
About

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.

Highlights
  • Instant note capture
  • Timestamped entries
  • To-do list integration
  • Personal scoreboard
  • Cross-device sync
  • Custom themes
  • Stealth mode
Features
Read full description

Open. Type. Done. Sidebar opens with the keyboard ready, so you can catch an idea in seconds and get back to what you were doing. No folders, no file names, no formatting. Just get it down before it's gone. EVERY ENTRY IS A LOG Notes are quick, timestamped logs, not documents. Add a tag when one needs to do more: - Todo: adds it to your task list - Win or Loss: counts toward your scoreboard - Love: marks the ideas worth coming back to KEEP SCORE Track wins and losses for anything: running, flossing, screen time. Your scoreboard shows what's on track and what needs attention. MAKE IT YOURS Choose any color for your theme. AND A FEW EXTRAS - Widget: pin an idea to your home screen - Sync across iPhone, iPad, and Mac - Stealth Mode: keep sensitive notes private - Time Travel: revisit a random day

About

PST Viewer for Outlook

Access and search Outlook PST and OST email archives directly on your iPhone or iPad. Browse folders, read messages, and search emails offline without needing an internet connection. This app offers a private and reliable solution for managing your email archives.

Highlights
  • Open PST & OST email archive files
  • Browse folders and subfolders
  • Read email subjects, senders, recipients, and dates
  • View email body content
  • Search emails by keyword
  • Preview and export attachments
  • Works offline
Features
Read full description

Read & search Outlook PST & OST files Open and explore Outlook PST & OST email archives directly on your iPhone or iPad. PST Mail Viewer lets you browse folders, read messages, and search emails — all offline and on your device. Pay once. Use on iPhone, iPad & Mac. No subscription. No ads. Key Features • Open PST & OST email archive files • Browse folders and subfolders • Read email subjects, senders, recipients, and dates • View email body content (plain text and supported formats) • Search emails by keyword • Preview and export attachments • Works offline — no internet connection required Privacy First PST Mail Viewer processes PST & OST files locally on your device. • No user accounts • No analytics or tracking • No data collection • No server communication File Access The app uses the iOS document picker to let you select PST/OST files from supported locations such as the Files app or iCloud Drive. Access is limited to files you explicitly choose. Important Information • This app is not affiliated with Microsoft or Outlook • PST/OST is a file format developed by Microsoft • Performance may vary depending on PST file size and device capability PST Mail Viewer provides a simple, private, and reliable way to access PST email archives on iOS. Send feedback to: admin@yenpi.com Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Sidebar | Fast Notes4 screens
PST Viewer for Outlook4 screens

Verdict

The call

The clearest difference is price: Sidebar | Fast Notes at Free against PST Viewer for Outlook's $7.99. Sidebar | Fast Notes also leads on in-app purchases (none vs 1). PST Viewer for Outlook's advantage is update cadence (weekly vs every 2 months) and iOS requirement (16.0 vs 18.6). On rating, review sentiment, ratings volume and ads 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

Sidebar | Fast Notes is free to download; PST Viewer for Outlook costs $7.99 up front. PST Viewer for Outlook sells 1 one-off in-app purchase. Sidebar | Fast Notes asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Sidebar | Fast Notes against 5.0 for PST Viewer for Outlook. Both are backed by a comparable volume of ratings — 7 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Sidebar | Fast Notes ships an update every 2 months, PST Viewer for Outlook weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Sidebar | Fast Notes versus PST Viewer for Outlook: the parameters behind the verdict, then further details
ParameterSidebar | Fast NotesPST Viewer for Outlook
PriceFree — better$7.99
Rating5.0 (7 ratings)5.0 (6 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings7 — better6
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.616.0 — better
Further details — not scored
Size2 MB20 MB
Age rating4+4+
DeveloperChris Woods延平 陈

Customer experience

Sidebar | Fast Notes

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PST Viewer for Outlook

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sidebar | Fast Notes

No in-app purchases

1 purchases

PST Viewer for Outlook

One-time1
  • PST Viewer Pro$7.99

Questions

Is Sidebar | Fast Notes free?
Sidebar | Fast Notes is free to download, with no in-app purchases.
Is PST Viewer for Outlook free?
PST Viewer for Outlook costs $7.99, and also offers in-app purchases.
Which has better reviews, Sidebar | Fast Notes or PST Viewer for Outlook?
Sidebar | Fast Notes and PST Viewer for Outlook are both rated 5.0 out of 5 on the App Store, from 7 and 6 ratings respectively.
Do Sidebar | Fast Notes or PST Viewer for Outlook have ads?
Neither Sidebar | Fast Notes nor PST Viewer for Outlook shows ads.
Which is updated more often, Sidebar | Fast Notes or PST Viewer for Outlook?
Sidebar | Fast Notes ships an update every 2 months, and PST Viewer for Outlook weekly. Most recently, Sidebar | Fast Notes was updated on October 30, 2026 and PST Viewer for Outlook on October 31, 2026.

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