Comparison

DIGITCA vs INDD Viewer

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

Head to head
About

DIGITCA

This app provides a persistent, scrollable tape calculator that remembers every entry. Edit past numbers and see totals update live. It includes conversion tools and natural language input for calculations.

Highlights
  • Persistent scrollable tape
  • Editable calculations
  • Autosave functionality
  • Unit and currency converter
  • Natural language input
  • Scientific keyboard
  • Interactive Home Screen widget
Features
Read full description

A tape calculator that doesn't forget. Every number you tap goes onto a tape you can scroll, edit, save, and come back to. No more wiping the screen by accident and losing the whole calculation. No more squinting at one line of digits, trying to remember what you were even working on. DIGITCA is built around a simple idea: numbers deserve a paper trail. The tape isn't just a log. It's the calculator itself. Tap any number to change it on the spot and watch the totals update live. Strike a row out like a pencil would. Undo anything: a deleted row, an edit, even a cleared tape, with a button, a shake, or a three-finger swipe. Autosave keeps your work safe between sessions. FREE Full tape calculator: persistent, scrollable, autosaved, with full undo Editable tape: tap any number to change it and totals recalculate instantly Tape order your way: authentic (newest at the bottom) or modern Cashier mode for quick running totals Scientific keyboard: trig, log, factorial, combinations, permutations, scientific notation, and statistics computed over your actual tape Natural input: type or dictate "twelve fifty plus tax" and DIGITCA gets it. On Apple Intelligence iPhones, an on-device language model catches phrasing the parser can't Date and time math: add days to a date, subtract weeks, calculate durations Currency converter: 161 world currencies + major crypto, rates from open.er-api.com Unit converter: length, weight, temperature, volume, speed, and more Live totals in the Dynamic Island while you calculate Plain text export Default light and dark themes Interactive Home Screen widget Speaks 11 languages, starting in yours DIGITCA FULL Tape archive: name, browse, search, tag, and reload past sessions, synced through your own iCloud, locked behind Face ID or PIN if you want Share tapes as encrypted .digitca files that preview right in the Files app Palettes inspired by classic calculator design: Braun-style, Pixel Art, Blueprint, Swiss, and more Tactile sounds inspired by classic calculators Full export suite: thermal card, PDF, CSV, Markdown, and 9:16 video for Reels and Stories More visual customisation: custom app icon, numeric font packs, tape density, custom logo on exports One-time purchase. Family Sharing supported. INTERACTIVE HOME SCREEN WIDGET Pin a live currency converter to your Home Screen. Tap to swap currencies, switch between preset amounts, and see the unit rate and last update time at a glance. NO SUBSCRIPTIONS. NO ADS. NO TRACKING. Your tapes live on your device and sync only through your own iCloud. We have no servers, no accounts, and no idea what you calculate. For shopkeepers, accountants, cooks, freelancers, designers, students, and anyone who runs the same numbers more than once and wants to remember how they got there. Made in Brevnov, Prague.

About

INDD Viewer

Features
Read full description

Preview InDesign (INDD) file content & convert INDD files to PNG/JPG/PDF easily. Share & see InDesign (INDD) files converted to PNG/JPG/PDF from within the app. User friendly interface. Easy to add files, preview & convert file content. Multiple language support : Arabic, Bangla, Chinese, Hindi, English, French, German, Indonesian, Italian, Japanese, Korean, Portuguese, Spanish, Russian, Thai, Vietnamese Terms of use(EULA) : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

DIGITCA4 screens
INDD Viewer4 screens

Verdict

The call

The clearest difference is ads: DIGITCA at none against INDD Viewer's shown. On price, in-app purchases, device support and iOS requirement 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. DIGITCA sells 1 one-off in-app purchase and INDD Viewer sells 5 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
DIGITCA versus INDD Viewer: the parameters behind the verdict, then further details
ParameterDIGITCAINDD Viewer
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 days—
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size59 MB12 MB
Age rating4+4+
Developermatous petranVaibhav Singhal

In-app purchases

1 purchases

DIGITCA

One-time1
  • DIGITCA Full$5.99
5 purchases

INDD Viewer

Subscriptions1
  • Premium Annual$9.991 Year
One-time4
  • INDD to PDF – 2 Credits$0.99
  • INDD to PDF – 4 Credits$1.99
  • INDD to PDF – 7 Credits$2.99
Show 1 more
  • Lifetime Access$14.99

Questions

Is DIGITCA free?
DIGITCA is free to download, with in-app purchases available.
Is INDD Viewer free?
INDD Viewer is free to download, with in-app purchases available.
Do DIGITCA or INDD Viewer have ads?
INDD Viewer shows ads; DIGITCA does not.

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