Comparison

Projecta BM500 vs KeldCo

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

Head to head
About

Projecta BM500

This kit allows users to monitor their battery systems, displaying key information like current, voltage, state of charge, and remaining time. It is compatible with various battery types and voltages, offering accurate measurements for a comprehensive understanding of battery health.

Highlights
  • Real-time current monitoring up to 500A
  • Supports 12V, 24V, or 48V DC battery systems
  • Compatible with AGM, GEL, and LFP batteries
  • Displays voltage, SOC, and time remaining
  • Accurate current (+/- 0.4%) and voltage (+/- 0.3%) measurements
Read full description

TBB'battery monitor kit is composed by a battery shunt and a monitor which allow the user to fully understand his/her battery. Here is some quick facts of this kit: 1) Measurement current is up to 500A 2) Is able to work with battery (or battery bank) 12Vdc, 24Vdc or 48Vdc 3) Compatible with AGM, GEL or LFP battery 4) An elegant design monitor to display battery information such as current, voltage, SOC, time remaining etc. 5) The monitor could be installed at any location where with easy access to users 6) Measurement accuracy: Current: +/- 0.4% Voltage: +/- 0.3%

About

KeldCo

Manage your home security devices with live video monitoring, instant motion alerts, and two-way audio. Customize schedules, filter for human detection, and store footage locally or in the cloud. Control up to 120 devices and share access with family.

Highlights
  • Live video monitoring
  • Instant motion alerts
  • Two-way audio communication
  • Night vision (full-color & infrared)
  • Customizable schedules & automation
  • Human detection filtering
  • Local & cloud storage options
  • Multi-device management
Features
Read full description

KeldCo App – Smart Control for Total Peace of Mind The KeldCo app puts home security control at your fingertips. With an intuitive interface, it lets you manage multiple security devices in one place, keeping you connected and informed anytime, anywhere. Key Features: • Live Video Monitoring: Access live video feeds instantly, monitoring multiple cameras to cover your entire property. • Instant Motion Alerts: Receive real-time alerts for detected motion. Customize sensitivity for essential notifications only. • Two-Way Audio: Communicate directly through the camera, whether to welcome visitors or deter intruders. • Full-Color & Infrared Night Vision: Capture clear footage day and night, ensuring no detail is missed. • Customizable Schedules & Automation: Set devices to turn on or off according to your schedule, simplifying routines. • Human Detection Filtering: Reduce unnecessary alerts by filtering for human detection, not animals or objects. • Local & Cloud Storage Options: Store footage locally on a Micro TF card or opt for cloud storage—flexible, no ongoing fees required. • Multi-Device Management: Control up to 120 devices, including cameras and smart plugs, on the same app. • Shared Access: Share access with family, allowing up to 16 users to view and manage the same feed. • User-Friendly Setup: Set up devices in minutes with no technical expertise—just follow the in-app steps. • Secure Data Protection: Built-in encryption protects footage and personal information. Why Choose KeldCo? KeldCo prioritizes convenience and control. Stay connected, monitor your property with customizable alerts, and enjoy unmatched home security in one seamless app.

Screenshots

Projecta BM5004 screens
KeldCo4 screens

Verdict

The call

The clearest difference is review sentiment: KeldCo at 100% against Projecta BM500's 0%. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Projecta BM500 ships an update every 7 months, KeldCo every 6 months. The most recent releases landed on July 5, 2026 and September 8, 2026 respectively.

Scorecard1 real difference · 9 level
Projecta BM500 versus KeldCo: the parameters behind the verdict, then further details
ParameterProjecta BM500KeldCo
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 7 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better14.0
Further details — not scored
Size24 MB235 MB
Age rating4+12+
DeveloperTBB Power Co., LtdKeld & Co Pty Ltd

Customer experience

Projecta BM500

Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

KeldCo

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Projecta BM500

No in-app purchases

None

KeldCo

No in-app purchases

Questions

Is Projecta BM500 free?
Projecta BM500 is free to download, with no in-app purchases.
Is KeldCo free?
KeldCo is free to download, with no in-app purchases.
Do Projecta BM500 or KeldCo have ads?
Neither Projecta BM500 nor KeldCo shows ads.
Which is updated more often, Projecta BM500 or KeldCo?
Projecta BM500 ships an update every 7 months, and KeldCo every 6 months. Most recently, Projecta BM500 was updated on July 5, 2026 and KeldCo on September 8, 2026.

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