e vs Ham2K Portable Logger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
e
A powerful calculator app supporting scientific and engineering notation with a wide range of functions and constants. It offers features like calculation history, user-defined variables, and formula insertion for complex computations.
- Scientific and engineering notation
- Calculation history
- User-defined constants and variables
- Advanced mathematical functions
- Formula insertion
- Autocomplete parentheses
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This calculator can be used not only in scientific notation(e.g. 1E-6) but also using engineering multipliers(e.g. p,n,u,m,k,M). Features - Calculations History and reuse it - Calculation history is automatically saved when exit app,can also scroll. - Can use engineering multipliers,6 Special buttons - Four user-defined constant - Four interactive variable - Three buttons can be insert formula - interactive variable can have alias - Functions: √,log,ln,sin,cos,tan,sinh,cosh,tanh,asin,acos,atan,asinh,acosh,atanh,e^x - Built-in Constants:π,bk,q,e0 and Operator ^ - Autocomplete parentheses - ON/OFF function key click sound - Mail transmission function of the calculation history - Built-in Online Help Viewer - Universal App There are also "e-calcFree" feature limited edition.
Ham2K Portable Logger
Log your amateur radio contacts (QSOs) efficiently while on the go. Supports popular operating events like POTA, SOTA, and Field Day, offering features like QRZ lookups, QSO maps, and offline data. Quickly find nearby parks and receive duplicate warnings.
- Log QSOs on the go
- Support for POTA, SOTA, Field Day
- QRZ.com name lookups
- QSO Maps
- Offline data files
- Duplicate QSO warnings
- Search nearby parks
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The best app to log your QSOs on the go. Support for Parks On The Air (POTA), Summits On The Air (SOTA), Field Day, Winter Field Day, Worldwide Flora and Fauna (WWFF) and more. Fast and efficient yet fully-featured: QRZ.com name lookups, QSO Maps, offline data files, contact rates, duplicate warnings, POTA spots, search parks nearby or by name, etc. See https://www.ham2k.com/legal/terms-of-service/
Screenshots
Verdict
The clearest difference is review sentiment: Ham2K Portable Logger at 86% against e's 0%. Ham2K Portable Logger also leads on price (Free vs $0.99) and update cadence (monthly vs every 6 months). e's advantage is in-app purchases (none vs 8) and ads (none vs shown). On 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
Ham2K Portable Logger is free to download; e costs $0.99 up front. Ham2K Portable Logger sells 6 in-app purchases, starting at $2.99 per month. e asks for nothing beyond the download.
e ships an update every 6 months, Ham2K Portable Logger monthly. The most recent releases landed on September 18, 2026 and September 4, 2026 respectively.
| Parameter | e | Ham2K Portable Logger |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 4.7 (49 ratings) — better |
| Positive reviews | 0.0% of reviews | 86.5% of reviews — better |
| Number of ratings | — | 49 — better |
| Update frequency | Every 6 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 10 MB | 118 MB |
| Age rating | 4+ | 4+ |
| Developer | e-skett Corp. | Sebastian Delmont |
Customer experience
e
Ham2K Portable Logger
In-app purchases
e
No in-app purchases
Ham2K Portable Logger
- Ham2K Log Filer - Monthly$2.991 Month
- Ham2K Log Filer - Annual$24.991 Year
- Show a bit of support…2 variants$4.99
- Show your support!$12.99
- Show your support!$14.99
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- Show a lot of support!!!2 variants$29.99
