OKKO vs Daopen
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
OKKO
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Okko is friction-free habit tracking. You know how it goes: you download a habit app, you're pumped the first few days, and then you forget to check in. Opening the app, navigating, finding the habit, tapping the checkmark β that's three steps too many. Okko removes the friction. At the time you pick, a Live Activity appears right on your lock screen with two buttons: Done, or Missed. You answer in under a second. That's it. Your check-in is logged, the activity closes, and you go on with your day. β HOW IT WORKS β β’ Create a habit (name + reminder time) β’ At your reminder time, a Live Activity appears on your lock screen β’ Tap Done, Missed, or snooze for an hour β’ Okko logs it, builds your streak, fills your calendar β FEATURES β β’ Native iOS Live Activities (iOS 17+) β’ Scheduled local notifications β’ Monthly calendar with done / missed days β’ Current streak + best streak β’ Minimal, lifestyle, premium design β’ No ads, no tracking β FOR WHO β For anyone trying to build a habit (gym, reading, meditation, hydration, no social mediaβ¦) without forcing themselves to open an app every day. β PHILOSOPHY β A habit is a repeated act. Tracking it should be too: automatic, instant, effortless. Okko was built around one rule β the less you interact with the app, the better it does its job. OKKO Premium β up to 5 active habits. One-time purchase of β¬9.99, no subscription. Privacy Policy: https://simplehabitstracker.web.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Daopen
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Daopen opens the documents other readers give up on - and converts them to PDF. HWP to PDF, ODT to PDF, Pages to PDF, right on your iPhone. No upload, no account, no subscription. FORMATS OTHER READERS REFUSE - OpenDocument - ODT, ODS and ODP from LibreOffice and OpenOffice. Tables, images and bullet lists stay intact. - Apple - Pages and Keynote with their full text (and Pages to PDF), Numbers tables with values, dates and merged cells. - Hangul - HWP and HWPX, the Korean office format, including old HWP 3.x files from before Hangul 97. - Old Office files - Word .doc, Excel .xls and .xlsb, PowerPoint .ppt, and RTF. EDIT AND ANNOTATE (NEW) - Long-press a paragraph in an HWP file, a cell in an Excel (.xlsx) or OpenDocument (.ods) sheet, or a text box in PowerPoint (.pptx) to edit it - Word (.docx) and OpenDocument text and slides (.odt, .odp): tap the pencil, then tap a paragraph to edit it - PDF: add pen, highlighter, text boxes and your signature on top of the page (the PDF's original text is not edited) - Your original file stays untouched - the edit is saved as a separate "_edited" copy - Documents with complex formatting may look slightly different after editing SIGNED FILES, E-INVOICES AND EMAILS - .p7m signed files and Italian e-invoices (fattura elettronica, FatturaPA) - opened and summarised - .asice, .bdoc, .edoc, .ddoc signature containers - see the documents inside - .xsig and .xades signatures, Spanish FacturaE invoices - .zfo data box messages (Czech datovΓ‘ schrΓ‘nka) with their attachments - .eml emails and Outlook .msg files - body and attachments - Chinese OFD documents - text view AND EVERYTHING ORDINARY - PDF - Word (.docx) - Excel (.xlsx) - number and date formats, frozen headers, pinch to zoom - PowerPoint (.pptx) - Plain text (.txt) IT LOOKS INSIDE THE FILE, NOT AT THE NAME A file with the wrong extension still opens correctly. And when a format really cannot be opened, Daopen says so plainly and hands the file to another app, instead of showing you an error you cannot act on. NO ADS WHILE YOU READ Other readers put a banner across the page you are trying to read. Daopen does not. The document screen is the document, edge to edge. No ad when you close a file, and no video ads. The free version shows a small banner on the file list, and a short full-screen ad when you open a document - at most every third file, never twice within a minute. A one-time purchase removes all ads for good. No subscription. EVERYTHING HAPPENS ON YOUR DEVICE Your files are never uploaded to a server. Daopen has no login, no cloud account and no sync. Open the app in airplane mode and it still works. CONVERT TO PDF WITHOUT UPLOADING - HWP to PDF, ODT to PDF, Pages to PDF, Word to PDF - any document to PDF - Document pages to images, saved straight to Photos - Text, Markdown or CSV out of Word, Excel, PowerPoint and Hangul files - Photos into a single PDF - useful for receipts and paperwork The conversion runs on your iPhone. Nothing is sent anywhere. ONLY THE FILES YOU CHOOSE Daopen opens only the files you pick in the Files app or share to it from another app. No contacts, no location, no analytics profile. Made by Mung Works.
Screenshots
Verdict
The clearest difference is in-app purchases: OKKO at none against Daopen's 1. OKKO also leads on ads (none vs shown). Daopen's advantage is iOS requirement (15.0 vs 17.2). On price, update cadence and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Daopen sells 1 one-off in-app purchase. OKKO asks for nothing beyond the download.
OKKO ships an update every 3 days, Daopen every 4 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.
| Parameter | OKKO | Daopen |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days β better | Every 4 days |
| Ads | No β better | Yes |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.2 | 15.0 β better |
| Further details β not scored | ||
| Size | 33 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | Abdallah Rahal | Meongmungi |
In-app purchases
OKKO
No in-app purchases
Daopen
- Remove Ads Forever$5.99









