Logic Op vs TdSE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Logic Op
This pocket reference provides essential information and examples for basic digital logic concepts. It covers logic gates, Boolean logic, flip-flops, Karnaugh maps, number conversions, and two's complement arithmetic.
- Logic Gates references and examples
- Boolean Logic references and examples
- Flip-Flops references
- Karnaugh Maps with solvers
- Number Conversion with solvers
- Two's Complement solver
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Logic Op is a pocket reference for basic digital logic. Features include: + Logic Gates: references and examples + Boolean Logic: references and examples + Flip-Flops references + Karnaugh Maps: references, examples, and solvers + Number Conversion: references, examples, and solvers (Binary, Hexadecimal, Decimal, Octal) + Two's Complement: examples and solver + and more... No in-app purchase. No ads. Accessible offline.
TdSE
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The TdSE app lets you browse times, locations, and descriptions for sessions, and special events and more information about the symposium.
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Verdict
The clearest difference is price: TdSE at Free against Logic Op's $2.99. On update cadence, 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
TdSE is free to download; Logic Op costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Logic Op ships an update every 38 months, TdSE every 24 months. The most recent releases landed on July 1, 2026 and October 3, 2026 respectively.
| Parameter | Logic Op | TdSE |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 38 months | Every 24 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.3 — better | 15.6 |
| Further details — not scored | ||
| Size | 27 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | Sigma Sky, LLC | NC Lab |
In-app purchases
Logic Op
No in-app purchases
TdSE
No in-app purchases
