AID Systems Guide — CamAPS FX

CamAPS FX

CamAPS FX is the most adaptable commercially available AID system, with customisable glucose targets, continuous algorithm learning, and strong research evidence across all age groups including pregnancy.

Highly adaptable Continuous learning Flexible targets

About this system

Batman-themed illustration representing CamAPS FX — with planning and preparation it can meet almost any situation

CamAPS FX is sometimes described as the Batman of AID systems: “With planning and preparation, I can beat anyone.” It offers exceptional flexibility for people who need it.

Want to listen to the podcast? Episode 4: Mastering CamAPS FX – The Batman of AID explores the CamAPS FX system’s customisable glucose targets, continuous algorithm learning, and exceptional flexibility — ideal for people with fluctuating insulin needs, including those who are pregnant or highly active.

Want more on how to choose an AID system?

Key features of this system:

  • The most adaptable system, allowing multiple glucose targets throughout the day, and announcement of hypos and high-fat meals
  • Well suited to people needing tighter control, such as during pregnancy
  • The most well-researched system across age groups, with a sophisticated algorithm that adapts continuously

If you are on CamAPS FX, this guide covers:

  • How the algorithm works
  • Starting settings
  • Tips and practical approaches
  • Preventing and managing hypos
  • High-fat meals
  • Exercise

How the algorithm works

CamAPS FX has four components:

  • Dana pump or YpsoPump (with pre-filled pump cartridge)
  • Dexcom G6 sensor or FreeStyle Libre 3 (with YpsoPump)
  • An Android smartphone (not iPhone-enabled as of March 2025)
  • The CamAPS FX app, which hosts the algorithm and connects to sensor and pump
CamAPS FX system overview showing the four components working together
CamAPS FX algorithm summary showing how insulin is delivered as micro-boluses every 8–12 minutes

Key principles of how the algorithm tends to behave:

  • The algorithm auto-calculates basal rates and correction factors and delivers insulin as an extended micro-bolus every 8–12 minutes
  • Insulin delivery increases when glucose is rising
  • Insulin delivery decreases and suspends if glucose is predicted to go low
  • The default target is 5.8 mmol/L (105 mg/dL), adjustable as low as 4.4 mmol/L (80 mg/dL) and as high as 11.0 mmol/L (198 mg/dL), in as many time blocks as needed — giving substantial flexibility

Starting settings

The algorithm needs your weight, average total daily insulin dose, and carbohydrate ratios. It then calculates the rest — including active insulin time and carbohydrate-on-board time — and continuously adapts.

Having the pump’s basal rates, correction factors, and carbohydrate ratios kept current is recommended for situations requiring a return to manual mode.

Once the above is set, the most common ongoing adjustments are carbohydrate ratios and target levels, depending on your time in range.

Starting an AID system can be divided into two phases:

Survive

Get safe, stable, and familiar. Understand how the system responds to you before trying to optimise.

Thrive

Once patterns are clear, explore adjusting targets and carbohydrate ratios to improve time in range.

Download the How to Survive and Thrive Guide — CamAPS FX summary.

Tips and practical approaches

Strong time in range on CamAPS FX tends to combine the algorithm with good underlying habits:

Follow these and you may find: 99 Problems But Highs Ain’t One (download/share)

Other practical points to be aware of:

  • Enter hypo treatments in the “Add meal” feature under “Hypoglycaemia treatment”
  • Suspending the pump when disconnecting (showers, sport, and similar) is the recommended approach per device guidance
  • The Android phone is designed to work within about six metres of the pump — a waistband or pocket close to the body is a common approach
  • Having pump settings — basal rates, correction factors, carbohydrate ratios, and target levels — kept current is recommended for use outside automated mode

Preventing and managing hypos

The algorithm tends to prevent many overnight hypos, but hypos will still occur — particularly if bolus insulin is too high or exercise is unplanned.

Hypo treatment amounts often need to be smaller than before AID, because the algorithm may have already reduced or stopped insulin for 30 minutes or more.

It is also worth considering a pre-emptive response if glucose is 4.0–6.0 mmol/L (70–110 mg/dL) and trending down.

The hypo guide below is based on weight — example shown is for a 30 kg person. The Survive and Thrive Guide — CamAPS FX lets you enter your weight to generate a personalised chart.

CamAPS FX weight-based hypo treatment guide showing carbohydrate amounts by glucose level

Download the CamAPS FX hypo chart to use directly.

High-fat meals

From the Mealtime Insulin Guide, we know that high-fat meals with carbohydrates (pizza, takeaways) tend to need additional insulin due to delayed gastric emptying.

CamAPS FX auto-calculates active insulin and carbohydrates on board, which makes it relatively good at responding to delayed rises after high-fat meals.

A common starting approach for high-fat meals

  • Entering 50% of the carbohydrate upfront and the other 50% via “Add meal” → “Slowly absorbed meal” is a common approach — this signals to the algorithm to anticipate a delayed rise
  • If glucose still rises significantly later: entering 100% of carbohydrates upfront, then adding 25–50% extra carbohydrate (“fake carbs”) around 90 minutes later is a pattern seen in practice

These are population-average starting points for exploration. Individual responses vary significantly — CGM data is the best guide to what works, and any adjustments should be discussed with a diabetes care team.

Exercise

There is a quick method and a more comprehensive planned method.

The quick method

Turn on “Ease Off” before starting exercise — ideally 90 minutes beforehand. Then take small carbohydrate top-ups every 20 minutes as needed.

Avoid large carbohydrate loads all at once — glucose may spike, triggering extra insulin and increasing hypo risk.

How many grams every 20 minutes? It depends on body weight. The example below is for a 50 kg person. The Survive and Thrive Guide — CamAPS FX lets you enter your weight to generate a personalised chart.

CamAPS FX exercise carbohydrate table showing estimated top-up amounts by body weight and activity duration

Download the exercise charts: mmol/L version and mg/dL version.

The comprehensive planned method

To use this approach, work through the Exercise Guide to understand exercise types, bolus reductions, and how to adapt plans after trials.

The T25/T25 table below tends to make more sense once you have read the exercise guide. The AID and Exercise Consensus Guideline is also worth reading — the infographic under the T25/T25 grid is especially useful.

This downloadable exercise planning tool for CamAPS FX makes creating and adapting exercise plans easier.

T25/T25 exercise planning table showing pre-exercise glucose and insulin exposure considerations
CamAPS FX exercise management infographic

Explore the algorithm

The AID System Explorer generates exploratory output ranges for CamAPS FX based on your TDD, weight, and responsiveness level. The detailed explainer explains how CamAPS uses lower targets and higher algorithm-delivered insulin to increase responsiveness — the same optimisation strategy as Control-IQ, with a different mechanism.

Key principles to take away

  • CamAPS FX is the most adaptable system — its flexible targets and continuous learning make it well-suited to variable insulin needs
  • The algorithm adapts continuously, but still works best on a foundation of good carb counting, pre-bolusing, and site rotation
  • Glucose targets can be adjusted by time of day — worth exploring with your care team for times when needs differ (overnight, post-exercise, pregnancy)
  • Exercise and high-fat meals both tend to require specific approaches — use your CGM data as the feedback guide
  • The “Ease Off” mode for exercise and “Slowly absorbed meal” for high-fat meals are specific features worth learning to use

This content is for educational exploration only. It describes average responses and general principles. It is not medical advice and cannot replace individual clinical guidance from your diabetes care team.

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