Comparison

Kiwi PDF vs Lachlan

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

Head to head
About

Kiwi PDF

Features
Read full description

Sign a contract on the go, fill in a form, mark up a drawing or scan a receipt into a PDF — Kiwi PDF puts a complete PDF toolkit on your iPhone and iPad. Most features are free. Advanced tools are part of Kiwi PDF Premium, an optional subscription — see the PREMIUM section below. ANNOTATE & MARK UP • Pen, calligraphy brush, marker, highlight, underline and strikethrough • 15+ shapes: rectangles, circles, arrows, polygons, callouts, cloud borders • Text boxes, sticky notes, stamps, stickers, voice notes and file attachments • Select multiple annotations at once and undo every step • Annotations are saved as standard PDF markup that other PDF apps can read FILL & SIGN • Fill interactive PDF forms, checkboxes and dropdowns • Draw your signature once, then reuse it on any document SCAN & CONVERT • Scan paper with your camera — edges are detected and perspective corrected automatically • Convert images and text to PDF; export PDF to images, text or Word (text only) • Compress, crop, grayscale, flatten, repair and remove blank pages • Zip and unzip files with optional AES-256 encryption READ & ORGANIZE • Fast reader with table of contents and text search • Reorder, rotate, insert, extract or delete pages • Merge and split files, add page numbers, headers, footers and watermarks • Built-in file manager with folders, search and previews KIWI PDF PREMIUM (auto-renewable subscription) The following features require an active Premium subscription: • Edit Text & Images — rewrite the original text inside a PDF; replace, move or delete embedded images • OCR — recognize text in scanned pages to make them searchable and editable • Measure — distance, perimeter, area and angle, with a custom or calibrated scale • Redact — permanently black out sensitive text and images • Password — set or remove PDF passwords • Remove Metadata — strip hidden document information SUBSCRIPTION INFORMATION • Kiwi PDF Premium is offered as a monthly or a yearly auto-renewable subscription. Prices are shown in the app and may vary by country. • Payment is charged to your Apple Account when you confirm the purchase. • The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. • You can manage or cancel your subscription in your Apple Account settings at any time after purchase. • If a free trial is offered, any unused portion of the trial is forfeited when you purchase a subscription. • An account is optional: you can buy and restore Premium without signing in. Sign in with a Kiwi PDF account only if you want to use your Premium on your other devices. You can delete your account in the app at any time. Terms of Use (EULA): https://kiwipdf.org/term Privacy Policy: https://kiwipdf.org/privacy Support: contact@kiwipdf.org — https://kiwipdf.org/help/en/

About

Lachlan

This app acts as a digital padlock, blocking distracting applications on a set schedule. It requires users to provide a reason before granting temporary access, encouraging mindful usage and accountability.

Highlights
  • Scheduled app blocking
  • Reason-based access grants
  • Personalized accountability
  • Screen time history trends
  • Streak system for engagement
  • Offline functionality
Read full description

Every app blocker is one tap from off. This one asks why. Lachlan is a small, deeply opinionated padlock who blocks your most distracting apps on a schedule you set, and then makes you explain yourself before he lets you back in. WHY THIS WORKS WHEN NOTHING ELSE HAS Most blockers are a wall you learn to climb in about three seconds. Lachlan is a conversation you have to have with a character who remembers what you said you wanted, and wants to know why you're doing this instead. Most of the time, you find you don't have a good reason to get into these distracting apps. HOW IT WORKS 1. Pick your problem apps. Social media, games, news, whatever's eating your time 2. Set a schedule, time limit, location, or timer to block your apps the way you want. 3. Try to open a blocked app and you'll hit the shield instead. 4. Open Lachlan and make your case. Depending on how good your reason is, he'll grant you 5, 15, or 30 minutes. 5. He keeps score. The fourth unlock of the day does not go like the first. HE ACTUALLY REMEMBERS YOU When you set up, Lachlan asks why you're cutting back and what you'd do with the time you got back. Then he brings it up. "You said you wanted to finish studying" lands very differently at 11pm than a generic productivity notification. He knows your name, your reasons, and exactly how many times you've caved today. Most blockers are stateless. Lachlan is not, and that's the whole difference. ALSO INCLUDED - Trends tab showing you screen time history - Streak system to keep you engaged each day - A home screen widget showing Lachlan's current mood - Custom block screens - Works offline, on a plane, in a tunnel, anywhere Subscription is required for access to the above features. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Kiwi PDF4 screens
Lachlan4 screens

Verdict

The call

The clearest difference is update cadence: Lachlan at weekly against Kiwi PDF's every 2 weeks. Kiwi PDF's advantage is iOS requirement (16 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. Kiwi PDF sells 2 in-app purchases, starting at $2.99 per month and Lachlan sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Kiwi PDF ships an update every 2 weeks, Lachlan weekly. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 8 level
Kiwi PDF versus Lachlan: the parameters behind the verdict, then further details
ParameterKiwi PDFLachlan
PriceFreeFree
Rating—5.0 (8 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—8 — better
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Subscription
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS16 — better26.0
Further details — not scored
Size20 MB34 MB
Age rating4+9+
DeveloperTIMON SOFTWARE CO., LTDND Enterprises

In-app purchases

2 purchases

Kiwi PDF

Subscriptions2
  • 1 Month Subscription$2.991 Month
  • 1 Year Subscription$24.991 Year
3 purchases

Lachlan

Subscriptions3
  • Weekly Subscription3 Days trial$3.997 Days
  • Lachlan Monthly Subscription$7.991 Month
  • Lachlan Yearly Subscription7 Days trial$69.991 Year

Questions

Is Kiwi PDF free?
Kiwi PDF is free to download, with in-app purchases available.
Is Lachlan free?
Lachlan is free to download, with in-app purchases available.
Do Kiwi PDF or Lachlan have ads?
Neither Kiwi PDF nor Lachlan shows ads.
Which is updated more often, Kiwi PDF or Lachlan?
Kiwi PDF ships an update every 2 weeks, and Lachlan weekly. Most recently, Kiwi PDF was updated on November 5, 2026 and Lachlan on November 10, 2026.

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