e vs Summa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
e
Easily scan, edit, and share documents directly from your phone. Features advanced OCR for text extraction and a comprehensive PDF toolkit for merging, splitting, and converting files. All processing is done locally for maximum privacy and security.
- Automatic document capture and alignment
- Advanced OCR for text extraction
- PDF editing and conversion tools
- Local encryption for maximum privacy
- Offline processing for core features
- Unlimited scans in the free version
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Scan, convert and protect your documents, right on your iPhone or iPad. No ads. No watermarks. No sign-in. No scan limit. EASY - SMART SCAN - Auto-capture: hold your phone over a page; the app finds the edges and takes the shot. Prefer to tap the shutter yourself? Switch to manual capture anytime. - Auto-align: perspective is corrected and the page is cropped for you, then your default filter is applied (Magic Color unless you choose another in Settings). - Precise cropping: drag a corner or a whole edge, with a magnifier. - Six filters: Original, Magic Color, Black & White, Grayscale, Sharpen and Denoise, for one page or every page at once. - Rotate pages, import from Photos or Files, send photos, PDFs or Word files from other apps into e-Scanner, and share through the iOS share sheet: Mail, messaging apps or Save to Files. EFFICIENT - ADVANCED OCR - On-device text recognition with Apple Vision, in English, Vietnamese, Japanese and Chinese. - Extract text on your device from the camera or any document in your library, free and offline. - PDF to Word keeps tables and math formulas as editable content. - Content search: find words inside your documents, Word files included, not just in file names. Search runs on your device. EFFICIENT - PDF TOOLKIT - 14 tools: merge, split, reorder & delete pages, rotate, compress, watermark, lock, unlock, images to PDF, convert to JPG, Word to PDF, PDF to Word, extract text and ID card (front and back on one A4 page). - Sign: draw your signature or pick it from a photo, then place it on any page of a PDF. - Blur: hide account numbers, addresses or faces on a page and save the result as a new document. - Open Word files inside the app, and print wirelessly. ENCRYPTED - YOUR DOCUMENTS STAY YOURS - Contracts, bank statements, ID cards: scans, PDFs and document names are encrypted with AES-256 where they are stored, on your device. - Files use iOS data protection and are excluded from iCloud and device backups. - Lock the app with Face ID, Touch ID or a PIN, and put a password on important PDFs. - Scanning, editing, search and export all work offline. CLEAR ABOUT THE CLOUD Server processing is off by default. Only two tools use it: PDF to Word and Word to PDF. They stay off until you turn on Advanced OCR in Settings and accept the data notice. Everything else runs on your device. PREMIUM The free version is complete: no ads, no watermarks, unlimited scanning and every tool. Premium adds: - Advanced OCR: 150 pages a month (up to 30 a day) instead of 10 a month - Merge PDF: unlimited files instead of 3 at a time - Images to PDF: unlimited images instead of 5 per PDF - Word to PDF: unlimited instead of 20 a day - Blur: unlimited instead of 10 free uses - Content search: free users see which documents and pages match; Premium opens a result at the matching page, shows snippets, and searches inside scanned documents - Lock and unlock PDFs with a password SUBSCRIPTION INFORMATION e-Scanner Premium is an auto-renewing subscription, monthly or yearly. The price in your currency is shown in the app before you buy. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period, and the renewal is charged within 24 hours before that. You can manage or cancel it in your Apple Account settings after purchase. Terms of Use: https://escanner.pbsolutions.io/en/terms/ Privacy Policy: https://escanner.pbsolutions.io/en/privacy/
Summa
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Write it down – Summa does the math. Summa is a notes app for iPhone, iPad and Mac. You jot down your travel budget, below it what’s already booked, and next to the following line you see what’s left per day. Change an amount and the rest falls back into place. No cells, no formula language. Beyond the math, Summa is a fully fledged notes app: headings, paragraphs, a photo in between, lists with boxes to tick off. Notes live in folders, can be searched, pinned, locked with Face ID or Touch ID, and can link to one another. If there’s nothing to calculate, it’s simply a note. The math helps wherever you’d normally run a rough estimate before deciding: a quote where the hourly rate is still open, or the question at which term a lease becomes more expensive than buying, interest included. Play it through first, then decide. The note stays, ready for next time. Values can carry names. Call an amount “rent” and you can use it further down without typing it again. A slider makes a number something you can grab: drag the hourly rate and the quote total moves with it. Longer breakdowns go into tables that calculate column by column; the column total is available to the rest of the note. WHAT SUMMA CALCULATES • Percentages – take off a discount, add sales tax, work out rent as a share of income • Units and currencies – square meters, kilograms, kilometers, kilowatt-hours, hours; dollars, euros, pounds and francs with your own rates, offline too • Dates and deadlines – the days until an appointment, in weeks or months if you prefer; date fields with a calendar • Finance functions – compound interest, savings plan, loan payment, remaining balance, loan interest, savings goal, purchasing power • Break-even points – the year from which two cost curves cross, the point at which a threshold is reached • Case distinctions – a different result depending on a value • Totals – sum, subtotal, average, count • Checkboxes – items count toward the total once you tick them off, not before • Plus input fields, result cards, Markdown and templates to get started CHARTS (PRO) Charts are built from what’s already in the note; you don’t enter anything twice. A table of utility bills becomes a bar chart, a savings plan a curve that shows when you’ll reach your goal. Ten chart types, including several curves from one table. Change a value in the note and the chart moves with it. ON ALL YOUR DEVICES Your notes live in your iCloud and are the same on iPhone, iPad and Mac; what you change on the go is already there at your desk. To pass things on: PDF and HTML, print-ready, with tables and charts (Pro). For other apps there’s Markdown, CSV and JSON, plus a backup of all your notes. ONE PURCHASE, NO SUBSCRIPTION Summa is free for up to three notes of your own, with all calculations, tables, sliders and templates. Summa Pro lifts the limit and unlocks charts and export as PDF and HTML. One purchase for iPhone, iPad and Mac, with Family Sharing. No subscription. PRIVATE Summa needs no account and collects no data about you. There are no ads. The app works offline; your notes live in your iCloud, and the developer has no access to them. Terms of Use: https://osiev.de/en/summa/eula.html
Screenshots
Verdict
The clearest difference is iOS requirement: e at 15.0 against Summa's 26.0. On price, update cadence, ads and in-app purchases 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. e sells 2 in-app purchases, starting at $1.99 per month and Summa sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | e | Summa |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (21 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 21 — better | — |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 60 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | CHI CONG NGUYEN | Oliver Dietmar Harald Sievers |
In-app purchases
e
- Premium (Monthly)1 Month trial$1.991 Month
- Premium (Annual)1 Year trial$14.991 Year
Summa
- Summa AI$1.991 Month
- Summa AI$12.991 Year
- Summa Pro$8.99








