Blackout vs FormuLens
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blackout
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Blackout is an offline emergency guide for your household, made for iPhone. When the power, signal or internet goes out, there is no time to search the web for advice. Blackout keeps the essentials on your phone: readable, fast and without any connection. FREE, FOR EVERYONE • Emergency guides for home, car, cabin, first aid and evacuation • Checklists for power outages, evacuation bag, water and food supplies, storms and leaving home • Ready-made crisis packs you install with one tap, including "Drought and water" • Weather alerts for your saved address, with notifications and advice on what to do (supported regions) • CPR metronome at 110 beats per minute and rapid first-aid triage • SOS light signal and loud siren • Emergency mode: extreme contrast, flat colors, saves battery, readable in the dark • Compass that works without a map, signal or internet • Emergency numbers for your country and a Family card to share: meeting point, numbers and a QR code • Face ID, Touch ID or passcode protection • Seasonal challenges with badges to collect BLACKOUT HOUSEHOLD: ONE-TIME PURCHASE, NO SUBSCRIPTION Try it free for 7 days. • SafeZone for the whole family (one pair of phones is free) • Expiry tracking for food and medicine with reminders (the 3 soonest items are free) • Self-sufficiency calculator without limits (free up to 2 people and 3 days) • Battery endurance: how many days your power banks keep phone and flashlight running • Encrypted backup (AES-256-GCM) and restore • Printable crisis plan as a PDF SAFEZONE: A NETWORK WITHOUT INTERNET SafeZone finds nearby iPhones with Blackout and connects them directly, with no router, SIM card or mobile data. You approve every device by hand. Then it passes on short messages and selected changes. Range is tens of meters: during an outage at home, but also at the cabin, on a campsite or at a festival. PRIVACY FIRST No account, no ads, no ad SDKs, no trackers. Your guides, lists and supplies stay on your device or between devices you trust. The app sends only anonymous daily counters (for example which screen was open) without a device identifier or personal content. Guides, checklists and tools work in airplane mode. IMPORTANT Blackout is an organizational aid. It does not replace emergency services, medical help, fire department or police. In danger to life, always call your local emergency number (911 in the USA, 112 in the EU). The SOS signal and siren are not a substitute for calling for help. Terms of Use (EULA): https://neologos.dev/en/pravni/podminky-pouzivani/blackout
FormuLens
Decode cosmetic ingredient lists by scanning product labels. Understand the function of each ingredient, compare different formulas side-by-side, and organize your favorite products for informed skincare choices. All analysis is done on-device for privacy.
- Scan and decode ingredient lists
- Understand ingredient functions
- Compare product formulas side-by-side
- Save and organize favorite products
- Recognizes 800+ ingredients
- On-device scanning, no internet needed
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FormuLens helps you scan ingredient labels, decode INCI lists, compare products, and check how your routine works together. SCAN INGREDIENT LISTS Take a photo or import one from your library. Scan cleanser, serum, moisturizer, sunscreen, makeup, hair care, body care, and fragrance labels. If a label is long, scan it across multiple photos and the app combines the results. UNDERSTAND EACH INGREDIENT See what each ingredient is doing in the formula, from humectants and emollients to surfactants, preservatives, exfoliants, antioxidants, and fragrance components. FormuLens highlights key ingredients for the product type and calls out unusual ones that are worth a closer look. Tap any ingredient for a plain-language explanation and optional reference links. COMPARE PRODUCTS OR CHECK YOUR ROUTINE Compare products of the same type side by side to review shared ingredients, overall similarity, formula differences, and a simple verdict. Check a routine to review layering order, ingredient conflicts, overlap between steps, a build-up of EU-regulated fragrance allergens, and what may be missing. Scan a mixed collection when you want a clear per-product breakdown. SAVE PRODUCTS FOR LATER Keep products you analyze with a photo, custom name, tags, and notes. Search by name, tag, or ingredient, and filter by tag any time. PRIVATE BY DESIGN Ingredient analysis happens on your device. Your photos and scans stay with you. No account required. FEATURES - Ingredient scanner for skincare, makeup, hair care, body care, fragrance, and SPF - INCI list reader with multi-photo scanning - Ingredient function breakdowns in plain language - Key and unusual ingredient highlights by product type - Active and Inactive sections for sunscreen and SPF labels - Side-by-side product comparison - Routine order, conflict, overlap, fragrance allergen, and gap insights - Saved products with photos, names, tags, notes, and search - Built for iPhone and iPad
Screenshots
Verdict
The clearest difference is in-app purchases: FormuLens at none against Blackout's 1. Blackout's advantage is update cadence (weekly vs every 6 weeks) and iOS requirement (17.0 vs 26.2). On price, ads 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
Both are free to download. Blackout sells 1 one-off in-app purchase. FormuLens asks for nothing beyond the download.
Blackout ships an update weekly, FormuLens every 6 weeks. The most recent releases landed on October 28, 2026 and October 15, 2026 respectively.
| Parameter | Blackout | FormuLens |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 23 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | VOJTECH LANDA | Bartlett Butter LLC |
In-app purchases
Blackout
- Blackout Household$9.99
FormuLens
No in-app purchases





