levv vs Halm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
levv
This app provides evidence-based guidance for parents to understand and address child behavior from birth to age 15. It offers explanations for 335 behaviors, actionable steps, and tools for parental well-being.
- 335 behavior categories for ages 0-15
- Evidence-based guidance with clinical sources
- Actionable 'what to do' steps
- Expert alerts for professional evaluation
- Daily behavior and sleep tracking
- Development milestones checklist
- Parental burnout and anxiety support
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Levv brings your baby's sleep, feeding, and behavior together in one calm, science-backed app, from birth to age 15. Track every sleep and feed, see clear weekly patterns, and understand what's behind your child's behavior, all grounded in developmental psychology and pediatric research. SLEEP TRACKING - Log naps and night sleep in seconds, or start a live sleep timer - See the next sleep window based on your baby's age - 7-day sleep chart compared with the recommended range - Smart sleep insights and weekly patterns from your own records - Gentle bedtime goal: shift bedtime 15 minutes earlier every 3 days - Age-based safe sleep guidance FEEDING TRACKING - Log breast, bottle and solids; see today's total and time since the last feed - Feeding pattern and weekly analytics - Feeding reminders, plus vitamin D / medication / routine reminders BEHAVIOR & DEVELOPMENT LIBRARY - Over 370 behavior topics across 11 age groups (0–15), from infant sleep problems to teenage rebellion - Each explained: what's happening, why it happens, and what you can do - Evidence-based guidance with clinical sources (AAP, CDC, WHO, peer-reviewed research) - Expert alerts when professional evaluation is needed - Age-based daily development tips FOR PARENTS - Daily mood check-in and self-care prompts - Support for burnout, guilt, anger and anxiety - Postpartum mood / baby blues and single-parent guidance - Breathing exercise for stressful moments TR / EN language support WHO IT'S FOR Parents, caregivers, and educators dealing with sleep issues, feeding routines, tantrums, separation anxiety, aggression, teen rebellion, school refusal, sibling rivalry, and more. Content is for informational purposes only and does not replace professional psychological or medical evaluation or treatment. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://zegrisz.github.io/levv-legal/
Halm
Learn German and English through engaging stories and adapted news articles. Tap any word for instant translation within the sentence context. Words you choose to keep are reviewed using an Spaced Repetition System.
- Read stories and news in German or English
- Tap words for instant in-sentence translation
- Spaced repetition for vocabulary review
- Offline functionality
- Privacy-focused with no account or analytics
- Accessibility features
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Read something you actually want to read — in German or English — and let the words stick. Halm turns short stories and adapted news into reading you can handle at your level. Tap any word to see what it means right here, in this sentence. Keep the ones worth keeping. EPISODES Multi-part stories set where you'd actually be: an apartment viewing, a doctor's waiting room, a Sunday at the lake. Each episode shares vocabulary across its parts, so words return on their own instead of being drilled. TAP ANY WORD Translation runs on your device. Halm reads the whole sentence, not the word alone. KEEP WHAT MATTERS You choose what enters review. Nothing is added behind your back. Kept words return on an FSRS schedule, and Halm shows you counts you can verify — never invented percentages. GERMAN AND ENGLISH Two full tracks. Pick one, or switch whenever you like. NO STREAKS Nothing to break, no leaderboard, no notification guilting you back. Read when you want to read. PRIVACY No account, no sign-up, no third-party analytics or advertising. Halm collects nothing automatically. ACCESSIBILITY VoiceOver throughout, Dynamic Type everywhere, Reduce Motion honored, and color never used as the only signal. Works offline. Requires iOS 26.
Screenshots
Verdict
The clearest difference is in-app purchases: Halm at none against levv's 2. levv's advantage is update cadence (weekly vs every 4 weeks) and iOS requirement (15.1 vs 26.1). On price, rating, review sentiment and ratings volume 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. levv sells 2 in-app purchases, starting at $4.99 per month. Halm asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for levv against 5.0 for Halm. Both are backed by a comparable volume of ratings — 5 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
levv ships an update weekly, Halm every 4 weeks. The most recent releases landed on October 10, 2026 and September 29, 2026 respectively.
| Parameter | levv | Halm |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (5 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 5 | 5 |
| Update frequency | Weekly — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 26.1 |
| Further details — not scored | ||
| Size | 37 MB | 488 MB |
| Age rating | 4+ | 12+ |
| Developer | Umit Durdu | Timofey Lavrenyuk |
Customer experience
levv
Halm
In-app purchases
levv
- levv Premium7 Days trial$4.991 Month
- levv Premium Yearly7 Days trial$19.991 Year
Halm
No in-app purchases









