the Picture Exchange Communication System (PECS) vs augmentative and alternative communication (AAC)
PECS or AAC: Which Is Right for My Child?
PECS and AAC are not an either/or choice — PECS is one specific picture-exchange method that sits inside the broader family of AAC, which covers every tool that supports or replaces speech, from gestures and picture boards to speech-generating apps. The right starting point depends on your child's skills, motor abilities and motivation, so a speech and language therapist guides the decision. Importantly, AAC does not stop a child from talking; evidence shows it often supports spoken language by reducing frustration and building communication.
When your child has so much to say but words are still finding their way, the right communication tool can open a whole world.
In short
This is not really an either/or choice — *PECS is one specific method that sits inside* the bigger family called AAC. AAC (augmentative and alternative communication) is the umbrella term for every tool and strategy that supports or replaces speech, from gestures and picture boards to speech-generating apps on a tablet. PECS is a structured, step-by-step picture-exchange programme — your child hands over a picture to make a request, then builds towards sentences. The best starting point depends on your child's current skills, motor abilities and motivation, which is why a speech and language therapist guides the decision rather than the family choosing alone.Understanding the two
Think of AAC as the whole toolkit and PECS as one well-loved tool in it.PECS* teaches communication by exchanging a physical picture card for something the child wants — beginning with single requests and progressing through structured phases towards commenting and short sentences. Its great strength is that it teaches the purpose* of communication early: that reaching out to another person gets a response. It needs no technology and travels easily.AAC is far broader. It includes:
- Unaided systems — gestures, signing, facial expression (nothing extra needed).
- Aided low-tech — picture boards, communication books, PECS itself.
- Aided high-tech — tablets and devices with speech-generating apps that 'speak' when a symbol is touched.
A reassuring truth worth repeating: AAC does not stop a child from talking. A large body of evidence shows it often supports spoken language, because it lowers frustration and builds the back-and-forth of communication. Many children use a blend — perhaps PECS to learn the joy of requesting, then a speech-generating device as their messages grow.
How the right fit is chosen
A therapist looks at how your child currently lets you know what they want, their hand and pointing skills, their visual attention, their motivation, and the everyday settings where they need to communicate. Some children thrive with the clear structure of PECS; others move quickly to a high-tech device; many benefit from a thoughtful combination that grows with them. The aim is always the same — to give your child a reliable, joyful voice.The Pinnacle way
This is general information, not a diagnosis — a clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care, never from an app or form. Our speech therapy team assesses your child's strengths and chooses the right AAC pathway — whether that begins with PECS, a device, or both — and we are always glad to [help you take the first step](/).Trusted sources
The American Speech-Language-Hearing Association (ASHA) on AAC supporting rather than hindering speech development; the American Academy of Pediatrics and HealthyChildren on communication support for children with speech delays.Next step — Book a speech and language assessment so a therapist can recommend the AAC approach — PECS, a device, or a blend — that gives your child the most powerful, confident voice.
What to watch
How your child currently signals what they want (pointing, leading, sounds), their hand and visual-attention skills, their motivation to communicate, and whether frustration rises when they cannot be understood — all guide whether PECS, a device, or a blend fits best.
Try this at home
Pause and 'wait' during favourite routines — hold up two choices and let your child reach, point or hand you a picture to choose. This builds the core idea behind both PECS and AAC: communication brings a response.
Trusted sources
Developed by SETU Consortium · Pinnacle Blooms Network · Last reviewed 2026-06-10 · reviewed every 365 days
This is general information, not a diagnosis. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care.
Frequently asked
Is PECS the same as AAC?
No — PECS is one specific, structured method that uses picture exchange, and it sits inside the larger family of AAC. AAC is the umbrella term for all tools that support or replace speech, including gestures, picture boards, PECS and high-tech speech-generating devices.
Will AAC or PECS stop my child from learning to talk?
No. Evidence consistently shows that AAC, including PECS, tends to support spoken language rather than hinder it, because it reduces frustration and teaches the back-and-forth of communication. Many children develop more speech once they have a reliable way to be understood.
How do we decide between PECS and a speech-generating device?
A speech and language therapist assesses your child's current communication, hand and pointing skills, visual attention and motivation, then recommends the best fit. Some children start with PECS, some move to a device, and many use a blend that grows with them.