Manage your library account on the go. Search the catalog, renew borrowed items, and place holds directly from your mobile device.
Pikes Peak Library by Pikes Peak Library District






25+ iOS apps curated and reviewed
The best ppld apps on iPhone average 4.1โ across 25+ titles โ we've ranked them by what real users actually keep on their phones. Updated June 2026.






Manage your library account on the go. Search the catalog, renew borrowed items, and place holds directly from your mobile device.






Automate and simplify plant care with this app. Monitor environmental conditions, manually control grow equipment, and track plant progress. It helps optimize growth and manage schedules for a better growing experience.

This app measures light intensity for plants, converting LUX to PPFD and DLI. It offers advanced light mapping, uniformity analysis, and efficiency insights to optimize plant growth. Customize profiles for different environments and growth stages.


This app acts as a professional-grade light meter for plants, measuring PAR, PPFD, DLI, and more using your device's camera. It helps optimize plant lighting by providing accurate readings and in-app guides, with optional advanced features available through purchase.


This app functions as a precise and user-friendly light meter using your phone's built-in sensors. It measures illuminance, color temperature, PPFD/PAR, DLI, and luminous flux in real-time. It also includes a calculator for various illumination parameters and allows sharing or saving of measurements.


Transform your smartphone into a professional light meter. Measure illuminance and color temperature with scientifically validated accuracy, trusted by professionals. Requires a simple diffuser for precise readings.


This app provides precise, real-time light measurements for photography, filmmaking, and design. It offers color temperature analysis, lux and foot-candle readings, and DLI calculations. Optimize your lighting setup with smart shooting recommendations and full manual control.


Measure light intensity and color temperature for photography, plant care, and workspace optimization. Offers real-time readings, shooting recommendations, and manual control for precise lighting adjustments.


This app provides precise light measurements in lux and foot candles, along with real-time color temperature readings. It offers shooting value recommendations and allows manual adjustment of camera settings for photographers, plant enthusiasts, and workspace optimization.


This application connects wirelessly to a handheld spectral PAR meter, allowing remote analysis and configuration of light sources. It displays detailed spectral data, light source information, and absorption metrics, with options to save and share measurements.


This app calculates conversions between various light units, including shortwave radiation, photosynthetic photon flux, lux, and foot-candles. It supports different light sources like fluorescent, metal halide, high pressure sodium, and sunlight.


Measure ambient light levels in lux or foot-candles instantly. Useful for photography, plant care, or verifying brightness for various tasks. Offers advanced features like color temperature and measurement history for premium users.


This app transforms your iPhone into a professional light and exposure meter. It provides real-time light measurements with EV feedback, allowing photographers and filmmakers to achieve perfect exposure. Advanced features like spot metering and histograms offer professional-grade control.


Measure light intensity for plant growth using your phone's sensor. Optimize indoor farming, hydroponics, and grow light setups by understanding PAR and PPFD levels. Improve plant health and yield with real-time data and saved measurements.




This app acts as a professional light meter for film cameras, helping you achieve perfect shots by measuring exposure, shutter speed, and ISO. It provides an easy-to-use tool for photographers to ensure accurate lighting conditions.


This app helps indoor plant owners determine if their plants are receiving adequate light. It uses your device's camera to measure light intensity in Lux and Foot Candle units, offering plant recommendations based on your readings. Track light changes over time and optimize plant placement for healthier growth.





