Comparison

Problem Logger vs LUFI AI Companion

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Problem Logger

Easily log and track recurring issues over time with a private, dated timeline. Ideal for recording symptoms, home repairs, or any situation where knowing when an event occurred is important. Keep your records secure and local on your device.

Highlights
  • Create dated timelines of events
  • Log incidents in seconds
  • Set optional reminders
  • Review timelines over days/weeks/months
  • Local device storage
  • App lock for privacy
Features
Read full description

Problem Logger helps you keep a simple, private record of things that happen over time. Create a problem, tap Log Now, and build a dated timeline. It works for recurring pain, noisy neighbours, home repair issues, car faults, workplace incidents, care notes, or any situation where knowing when something happened is useful. Why people use Problem Logger: • Keep a dated timeline of recurring or occasional problems • Record when something happened in seconds • Set optional reminders so you remember to check in • Review your timeline over days, weeks, or months • Keep records local on your device • Use Face ID or Touch ID app lock for extra privacy Useful for: • Symptoms, pain, sleep issues or side effects • Noise, neighbour or nuisance records • Landlord, home repair or maintenance problems • Vehicle, appliance or device faults • Workplace incidents or recurring concerns • Pet, family or care-related observations • Any problem where a clear record helps Problem Logger is flexible. It is not limited to one type of problem and does not force you into a medical, legal, or complaint workflow. Start with a timestamp and build a clear personal record over time. Privacy first: • No account required • Logs are stored locally on your device • App lock support is available Problem Logger does not provide medical, legal, or professional advice. It helps you keep a personal record that you can review when needed.

About

LUFI AI Companion

Features
Read full description

Meet LUFI. More than an AI. A companion that remembers. Most AI assistants start every conversation from scratch. LUFI doesn't. It remembers the people, projects, dreams, and moments that matter to you, allowing every conversation to feel more natural, personal, and meaningful over time. Instead of simply answering questions, LUFI builds a relationship with you.

Screenshots

Problem Logger4 screens
LUFI AI Companion4 screens

Verdict

The call

The clearest difference is price: LUFI AI Companion at Free against Problem Logger's $9.99. LUFI AI Companion also leads on iOS requirement (15.1 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

LUFI AI Companion is free to download; Problem Logger costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences Ā· 5 level
Problem Logger versus LUFI AI Companion: the parameters behind the verdict, then further details
ParameterProblem LoggerLUFI AI Companion
Price$9.99Free — better
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.615.1 — better
Further details — not scored
Size3 MB62 MB
Age rating4+12+
DeveloperThomas RichardsonHUERLEM PETERS

In-app purchases

None

Problem Logger

No in-app purchases

None

LUFI AI Companion

No in-app purchases

Questions

Is Problem Logger free?
Problem Logger costs $9.99, with no in-app purchases.
Is LUFI AI Companion free?
LUFI AI Companion is free to download, with no in-app purchases.
Do Problem Logger or LUFI AI Companion have ads?
Neither Problem Logger nor LUFI AI Companion shows ads.

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