200+ iOS apps curated and reviewed
If you already know Datalog App, this is the deeper bench. 200+ data log apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 |
| 2 |  | Free | 4.2★ (3.2K) | No | No | Jul 2026 |
| 3 |  | Free | 5.0★ (3) | Yes | Yes | May 2026 |
| 4 |  | Free | 4.6★ (112) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 4.2★ (6) | No | No | May 2026 |
| 6 |  | Free | 4.6★ (149) | No | Yes | Jul 2026 |
| 7 |  | Free | — | No | Yes | Jul 2026 |
| 8 |  | Free | — | No | No | May 2026 |
Monitor your mobile data usage in real-time across Wi-Fi, mobile, and roaming. This app helps you understand your consumption, set custom alarms to avoid overage fees, and enhances your online privacy with VPN technology.
Effortlessly track your daily routines and accomplishments with this intuitive logging app. Customize your experience with themes and colors, and gain insights into your activity patterns. All data is stored locally for complete privacy, with a free version offering all features and an optional PRO upgrade for an ad-free experience.
Monitor your cellular, Wi-Fi, and roaming data usage with real-time tracking and customizable alerts. See remaining data, days left, and daily allowances at a glance with home screen widgets and Apple Watch support. Avoid overages and surprise bills with detailed history and smart notifications.
This app allows users to create custom logs for any type of event. It's ideal for data collection in the field, with real-time time-tagging and exportable CSV files for analysis. Track anything from ant colony behavior to sports statistics.
This app helps you remember more by tracking places, times, thoughts, and information. Capture notes with precise timestamps and locations, then easily recall past events and details. Organize your logs into multiple lists and export your data for safekeeping.
This app helps individuals manage diabetes by providing tools to maximize continuous glucose monitor (CGM) data. It offers enhanced visualizations, a digital diary for logging trends, and customizable alerts. Data can also be shared with loved ones.
This app helps free up storage on your iPhone or iPad by removing duplicate and similar photos, videos, and contacts. It offers a one-click cleanup to boost performance and includes a secure vault for private information.
Easily monitor your cellular and WiFi data usage in real-time with intelligent forecasts and custom alerts. Never exceed your data cap again with at-a-glance widgets and Siri integration.
This app helps shooters of all levels track their performance with detailed shot logging, analytics, and visual heatmaps. It allows for offline use and progression monitoring to enhance accuracy and consistency.
This utility logs and records GPS data, including location, notes, and accuracy details. It offers a big button mode for easy data logging and allows exporting data in various formats for use in other applications. It also provides a return-to-location feature.
Monitor your heart rate, analyze stress levels, and gain valuable health insights with this comprehensive wellness tool. It offers real-time tracking, personalized tips, and detailed reports to help you understand your body and improve your well-being.
Record and stream sensor data from your iPhone, iPad, and Apple Watch. Export data in CSV or JSON format, or send it via TCP, UDP, or HTTP requests. Integrates with Core ML models for advanced analysis.
This app helps you track anything, from habits and medications to spending and moods. It offers customizable trackers, detailed statistics, and helpful reminders to identify patterns and achieve your goals. Integrates with Apple HealthKit for automatic tracking.
This app helps users track blood sugar, weight, blood pressure, and medications to manage diabetes. It offers features like data logging, trend identification, customizable reminders, and report generation for healthcare professionals. An estimated A1C calculator is also included.