Comparison

Quantify vs LifeInLines

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

Head to head
About

Quantify

This app allows users to create custom data trackers for any aspect of their lives. Visualize your progress with real-time charts and analyze relationships between different variables. Securely sync your data across devices with cloud backup.

Highlights
  • Custom trackers (numeric, text, boolean, timestamp)
  • Real-time line charts
  • Correlation analysis with p-values
  • Cloud sync across devices
  • Secure sign-in with Apple/Google
Features
Read full description

Quantify is a powerful data tracking tool designed for users who want complete control over what they measure and how they interpret it. Key Features: Custom Trackers: Create unlimited trackers with numeric, text, boolean, or timestamp inputs. Realtime Charts: Visualize your data instantly with line charts updated live. Correlation Analysis: Identify relationships between variables with built-in correlation scoring and p-value calculations. Cloud Sync: Data is securely stored and synced across devices via Firebase Firestore. Secure Sign-In: Log in using Apple or Google with Firebase Authentication.

About

LifeInLines

Create a personalized system to track any aspect of your life, from health to business. Design custom metrics, groups, and insights to visualize your progress and understand your patterns. Tailor units, colors, and icons to build a tracking experience that fits your unique needs.

Highlights
  • Customizable metrics and groups
  • Personalized units, colors, and icons
  • Visual trend analysis and insights
  • Goal setting and progress tracking
  • Built-in privacy features
Features
Read full description

LifeInLines isn’t just a tracker — it’s a blank canvas for your data. Whether you’re optimizing your health, managing your business, or just curious about the patterns that shape your life, LifeInLines gives you the tools to create your own system, your way. Track What Matters. However It Matters. Design a personalized experience using custom: • Metrics – Track anything from caffeine intake to customer leads • Groups – Organize metrics by life area, project, or priority • Insights – Discover trends over time with customizable visual analysis • Goals – Watch yourself progress in real time Customize Everything • Create your own units (e.g., “cups,” “hours,” “mood level”) • Personalize with custom colors and icons • Set up data your way — no predefined categories or limits • Keep your secrets, and track them too — built-in privacy features keep your private metrics safe Built for People Who Track Differently LifeInLines is made for: • Self-improvement obsessives who want total control • Small business owners tracking operations, habits, or KPIs • Anyone who knows their life runs on data — and wants to own it

Screenshots

Quantify4 screens
LifeInLines4 screens

Verdict

The call

The clearest difference is in-app purchases: Quantify at none against LifeInLines's 1. Quantify also leads on update cadence (daily vs every 5 days). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. LifeInLines sells 1 one-off in-app purchase. Quantify asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Quantify against 5.0 for LifeInLines. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Quantify ships an update daily, LifeInLines every 5 days. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
Quantify versus LifeInLines: the parameters behind the verdict, then further details
ParameterQuantifyLifeInLines
PriceFreeFree
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings23 — better
Update frequencyDaily — betterEvery 5 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.6
Further details — not scored
Size20 MB3 MB
Age rating4+4+
DeveloperNicole Blair StoddartStattra Dataworks LLC

Customer experience

Quantify

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

LifeInLines

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Quantify

No in-app purchases

1 purchases

LifeInLines

One-time1
  • VIP Upgrade$7.99

Questions

Is Quantify free?
Quantify is free to download, with no in-app purchases.
Is LifeInLines free?
LifeInLines is free to download, with in-app purchases available.
Which has better reviews, Quantify or LifeInLines?
Quantify and LifeInLines are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.
Do Quantify or LifeInLines have ads?
Neither Quantify nor LifeInLines shows ads.
Which is updated more often, Quantify or LifeInLines?
Quantify ships an update daily, and LifeInLines every 5 days. Most recently, Quantify was updated on October 7, 2026 and LifeInLines on October 9, 2026.

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