LabCalcPro vs Archive Learning
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LabCalcPro
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LabCalcPro is a precision serial dilution and solution preparation calculator for laboratory professionals. Enter your inputs and get step-by-step, bench-ready protocols instantly. WHAT IT DOES • Advanced serial dilution engine using the standard C1V1 = C2V2 formula • Automatically plans multi-stage serial dilutions for extreme ratios (≥1000×), now supporting up to 3 stages when required • Selects the best pipette from your available set • Rounds volumes to match real pipette resolution • Generates numbered, executable protocol steps • Shows full math derivations for verification NEW IN v1.2 AUTOMATIC 3-STAGE SERIAL DILUTION • Extends the solver beyond 2 stages for extreme dilution ratios • Transparently selects 1-, 2-, or 3-stage plans based on feasibility and pipette comfort • Labels intermediates clearly with concentration units • Documents stage selection reasoning in Show Math SAVED SOLUTES • Save frequently used molecular weights with a custom name • Instantly recall solutes from a searchable picker • Edit or delete saved solutes anytime • Stored locally on your device MOLARITY ↔ MASS • Calculate the mass of solute needed for a target molarity and volume • Or compute resulting molarity from a measured mass • Weighability-aware rounding aligned with analytical balance precision • Volumetric preparation assumption clearly documented in Show Math BENCH MODE Tap the flask icon to enter Bench Mode. The screen stays awake, inputs collapse, and protocol steps display in large text for use directly at the bench. BUILT FOR SCIENTISTS • Supports P10, P20, P200, and P1000 pipettes (customizable) • Handles M, mM, µM, and nM concentrations and L, mL, and µL volumes • Warns when transfer volumes are at pipette limits • Names intermediate solutions with concentrations during serial dilutions • Per-stage math transparency for serial workflows SAVE AND SHARE • Name and save calculations for later reference • Load saved calculations back into the calculator • Copy protocol steps to the clipboard • Export full calculations for sharing TRANSPARENT AND PRIVATE • All calculations run entirely on your device • No account required • No cloud sync, tracking, or ads • Full math shown for every calculation • Deterministic results; identical inputs always produce identical outputs LabCalcPro performs mathematical calculations only. It does not provide medical, clinical, safety, or experimental technique guidance.
Archive Learning
Learn new vocabulary from reading without leaving the page. Save words with context, review them with spaced repetition, and track your progress within different fandoms. Works offline with multiple language translations.
- In-context translation
- Spaced repetition review
- Offline dictionary
- Fandom-based library sorting
- Multi-language support
- Learned word tracking
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This app is not affiliated with Archive of Our Own (AO3) or the Organization for Transformative Works. You're three chapters deep into a fic you can't put down, and the author drops a word you've never seen. You don't want to leave the page. Double-tap, get the translation and the sentence it came from, save it with a swipe, keep reading. What stays in your vocab is not a bare word — it's a scene. Open the card a week later and you'll remember which fic it was, who said it, and to whom. Cards come back for review when your brain is about to forget them. Not sooner, not later. No deadline calendar to chase. Works offline too. On a plane or somewhere with no Wi-Fi, your words still get translated — the dictionary is built into the app. Tap "running" and you save "run". Tap "ran" and it's the same word. No pile of duplicate cards for one verb. Saved words are underlined in the text. Green for the ones you've learned, red for the ones you're still studying. Library sorted by author and fandom — see exactly which fandom you've fallen into this month. Favourite lines save separately, to come back to. Interface in English, Russian, Spanish, Ukrainian. Translation between 13 languages — beyond the usual set you also get Estonian, Serbian, Hebrew, Arabic. No cloud. No account. No subscription. Everything you save lives on your device.
Screenshots
Verdict
The clearest difference is in-app purchases: Archive Learning at none against LabCalcPro's 1. LabCalcPro's advantage is update cadence (every 3 days vs every 10 days). On price, ads, 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
Both are free to download. LabCalcPro sells 1 one-off in-app purchase. Archive Learning asks for nothing beyond the download.
LabCalcPro ships an update every 3 days, Archive Learning every 10 days. The most recent releases landed on October 15, 2026 and October 21, 2026 respectively.
| Parameter | LabCalcPro | Archive Learning |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (89 ratings) — better |
| Positive reviews | — | 94.5% of reviews |
| Number of ratings | — | 89 — better |
| Update frequency | Every 3 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 44 MB | 54 MB |
| Age rating | 4+ | 17+ |
| Developer | Matthew Fishman | Ekaterina Krasner |
In-app purchases
LabCalcPro
- LabCalcPro Lifetime$5.99
Archive Learning
No in-app purchases
Questions
Is LabCalcPro free?
Is Archive Learning free?
Do LabCalcPro or Archive Learning have ads?
Which is updated more often, LabCalcPro or Archive Learning?
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