DayDistance vs okLens
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DayDistance
Easily calculate the duration between two dates in days, months, or years. You can also determine a future or past date by adding or subtracting a specified number of days, months, or years.
- Calculate days between dates
- Calculate months between dates
- Calculate years between dates
- Determine date from number of days
- Determine date from number of months
- Determine date from number of years
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DayDistance is a simple date calculator for finding the interval between two dates. Choose a start date and an end date to see the number of days, weeks, months, and years, months, and days at a glance. You can also enter an interval to calculate an end date before or after a start date. Useful for: - Counting the days since starting school, a new job, or another milestone - Checking the time remaining until an exam, trip, anniversary, or deadline - Calculating the time until a due date or scheduled event - Finding a date a specified number of days, weeks, months, or years away Features: - Calculate days, weeks, months, and years, months, and days between two dates - Calculate an end date from a specified interval - Choose whether to include the start date - Gregorian and Japanese calendar display - Native support for iPhone and iPad - Share calculation results - Optional one-time in-app purchase to remove ads DayDistance makes everyday date and interval calculations quick and easy.
okLens
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okLens is a minimalist document scanner — photograph a paper document, get a clean, auto-cropped copy that stays on your device, and export it as an image or PDF whenever you need to. No account. No cloud. No subscription. WHY okLens Because Microsoft Lens has been discontinued. okLens is the local alternative: your scans live on your device only — never uploaded, never synced, no sign-up. WHAT IT DOES · Camera scanning — manual shutter, so it never fires before you're ready · Smart crop — finds the document edges automatically, drag the corners to fine-tune · Straighten — rotate a skewed shot back into place · Flash — turn on the light when the room is dim · Import from Photos — turn a photo someone sent you into a clean scan · Enhance — automatic contrast and sharpness boost · Export images — send several scans to Photos at once · Make a PDF — merge multiple pages into one file and share it PRIVACY okLens makes no network requests of its own. No servers, no accounts, no analytics, no third-party SDKs. Every scan is stored in the app's private storage. Delete a scan and it is gone from the device; delete the app and everything goes with it. Saving to Photos uses add-only permission — okLens cannot read, browse, or delete the photos you already have. Importing goes through Apple's system picker, so it only ever receives the images you pick. PRICING The free version is fully usable; exported images and PDFs carry one small watermark line. A single purchase removes it for good — a one-time purchase, not a subscription. Yours for life, future updates included. LANGUAGES English · 简体中文 · 日本語 · 한국어 · Español · Deutsch
Screenshots
Verdict
The clearest difference is ads: okLens at none against DayDistance's shown. okLens also leads on iOS requirement (16.0 vs 26.0). On price, 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
Both are free to download. DayDistance sells 1 one-off in-app purchase and okLens sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | DayDistance | okLens |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 5 months | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Tohru Itoh | 海龙 李 |
In-app purchases
DayDistance
- Remove Ads$1.99
okLens
- okLens Pro$4.99









