Comparison

Index vs Diaryx

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

Head to head
About

Index

Read full description

Index is a workspace for the creative process. Bring your references, ideas, and project work together, and put the inspiration you collect to use. Save links and images through the iOS share sheet. Keep them in your Inbox to sort later, or add them where they belong. When you’re ready to work on something, your material is ready to use. COLLECT AND RETURN Keep references in a visual library. Organize them into folders, add tags, and use search and filters to find what you need. EXPLORE ON BOARDS Bring references together, explore visual directions, and add context with sections and captions. BRING THE PROJECT TOGETHER Keep your brief, saves, boards, documents, and tasks in one place. Record ideas, plan next steps, and return to the work with its context close at hand. SHARE YOUR THINKING Share boards so clients and collaborators can view your references and leave comments. FOLLOW THROUGH Track tasks within your projects, from the first things to explore to the details that need finishing. Whether you’re developing a visual identity, planning a shoot, or working on a personal idea, Index gives the different parts of your process a shared home. Saving is just the beginning. Support: support@in-dex.co Privacy Policy: https://www.in-dex.co/privacy Terms of Service: https://www.in-dex.co/terms EULA Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Diaryx

Securely store, transcribe, and share your important life documents. This app uses archival techniques to ensure your files are safe and accessible, allowing collaborators to add remarks and build a shared history.

Highlights
  • Secure plaintext storage
  • Content-addressed history
  • Shareable circles with filtered views
  • Collaborative remarking on pages
  • Archivist-inspired fixity checks
  • Polyhierarchy for flexible organization
  • Self-repairing file detection
Features
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Diaryx is your very own "papers project"---a place for the most important documents in your life, so they can be kept safe, transcribed, annotated, and safely shared with friends and family. IF DIARYX DISAPPEARED, YOU WOULD LOSE NOTHING Your files are stored as readable plaintext on your device. You don't need an app to view them or understand them. So, your files stay yours. CIRCLES: SHARE WITH THE RIGHT PEOPLE Mark any page with a circle, such as "family" or "friends." Share with them a filtered view of your papers. Invite one person at a time. The person you invite does not need an account or app—only a link to your website. THEY WRITE BACK Any reader, given access, can sign in and leave a remark on a page: a note, a highlight, a correction, a memory of their own. BORROWED FROM ARCHIVISTS Libraries and archives use techniques to keep documents trustworthy across generations. Diaryx brings that to the scale of one family. - FIXITY: Diaryx records a fingerprint of every attachment, so damage from a failing drive or a bad sync can be detected immediately. Entries themselves are kept in a content-addressed history, and can be fingerprinted too by turning on Content checksums in Settings. - HISTORY: Every save can be kept as a snapshot, and every circle gets its own history containing only what its readers were shown. Forgetting something removes it from every history that quoted it. - EMBEDDED METADATA: Each file contains its own metadata, which means a document is never separated from its most important information. - POLYHIERARCHY: Arrange the same collection by year, person, place, or any arbitrary thing, without moving a single file. One archive may have many different ways to look at it. - SELF-REPAIRING: Detect issues with your files on-demand (such as fixity drift) and choose to fix it either automatically or manually. Note: Diaryx does *not* currently automate backups or automatically scan your files for issues. It is recommended to regularly do the following for best possible outcomes for your files: - Backup your folder via the Files app to a variety of locations - Run Check Library (in Settings) to detect sync or bitrot issues. DIARYX PLUS — $4.99/MONTH Closest, Family, Friends and Everyone, with their own diaryx.org address, are included free. A Diaryx Plus subscription allows you to share up to 50 circles, publish up to 10 sites, and use custom domains. Diaryx Plus is an auto-renewable subscription, $4.99/month. It includes 100 GB of photos and files, synced or published (free accounts get 1 GB), photos and files up to 100 MB each (free accounts get 10 MB), up to 10 published sites (free accounts get 1), up to 50 circles to share them with (free accounts get 1, with Closest, Family, Friends and Everyone counting as one), and up to 10 custom domains (free accounts get none). Writing and reading in Diaryx are free and need no subscription, and the text you write never counts against storage on any plan. Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless turned off at least 24 hours before the end of the period; manage or cancel in your Apple Account settings. - Terms of Use: https://diaryx.org/terms.html - Privacy Policy: https://diaryx.org/privacy.html

Screenshots

Index4 screens
Diaryx4 screens

Verdict

The call

The clearest difference is update cadence: Diaryx at every 2 days against Index's monthly. Index's advantage is iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases 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

Both are free to download. Index sells 2 in-app purchases, starting at $11.99 per month and Diaryx sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Index ships an update monthly, Diaryx every 2 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
Index versus Diaryx: the parameters behind the verdict, then further details
ParameterIndexDiaryx
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyMonthlyEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.1 — better26.0
Further details — not scored
Size70 MB106 MB
Age rating12+4+
DeveloperHidden Link StudiosAdam Harris

In-app purchases

2 purchases

Index

Subscriptions2
  • Index Pro$11.991 Month
  • Index Pro$99.991 Year
1 purchases

Diaryx

Subscriptions1
  • Diaryx Plus—Monthly$4.991 Month

Questions

Is Index free?
Index is free to download, with in-app purchases available.
Is Diaryx free?
Diaryx is free to download, with in-app purchases available.
Do Index or Diaryx have ads?
Neither Index nor Diaryx shows ads.
Which is updated more often, Index or Diaryx?
Index ships an update monthly, and Diaryx every 2 days. Most recently, Index was updated on October 28, 2026 and Diaryx on October 31, 2026.

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